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Mineral Specimens






Rockman's mineral specimens are hand broken as opposed to being crushed which helps keep cleavage and fracture characteristics intact and provides freshly broken areas for better examination of the specimens. If you are looking for a specimen that is not listed, please contact us; we may have it in stock or we may be able to locate it. Please note that some of our specimens are offered below as 10-packs or 5-packs in resealable bags, or as an individual specimen in a cardboard box or in a resealable bag (as appropriate).

We offers the 3 standard sizes of minerals as illustrated:

small specimen............ medium specimen............ large specimen


Amazonite - Microcline Feldspar (greenish-blue, massive to cleavable)

  • 10 Pack - Small [M030b]
  • 10 Pack - Medium [M030c]
  • 1 Large Sample [M030d]
Item Number
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Angelite (pale blue gem variety of Anhydrite - ideal for small carvings)

  • 10 Pack - Medium [M041c]
  • 1 Large Sample [M041d]
Item Number
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Apatite - Blue, Green or Tan

  • 10 Pack - Small [M068b]
  • 10 Pack - Medium [M068c]
  • 1 Large Sample [M068d]
Item Number
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Aragonite - Banded (Limited Supply)

  • 10 Pack - Small [M069b]
Item Number
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Aragonite - White (massive)

  • 10 Pack - Small [M070b]
  • 10 Pack - Medium [M070c]
  • 1 Large Sample [M070d]
Item Number
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Aragonite - Crystal Cluster (orangish-brown to cream)

  • 1 Small Specimen [M071b]
  • 1 Medium Specimen [M071c]
Item Number
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Aragonite - Crystal Shape (orangish-brown)

  • 10 Pack - Small [M072b]
  • 10 Pack - Medium [M072c]
  • 1 Large Sample [M072d]
Item Number
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Augite - Pyroxene (olive green to blackish)

  • 10 Pack - Small [M075b]
  • 10 Pack - Medium [M075c]
  • 1 Large Sample [M075d]
Item Number
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Barite - Blue; light blue (crystals in rock matrix)

  • 10 Pack - Small [M079b]
  • 10 Pack - Medium [M079c]
  • 1 Large Sample [M079d]
Item Number
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Barite - White; white to brown (massive to platy)

  • 10 Pack - Small [M080b]
  • 10 Pack - Medium [M080c]
  • 1 Large Sample [M080d]
Item Number
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Bauxite (gray to brown masses, pisolitic texture)

  • 10 Pack - Small [M090b]
  • 10 Pack - Medium [M090c]
  • 1 Large Sample [M090d]
Item Number
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Beryl (light blue)

  • 10 Pack - Small [M100b]
  • 10 Pack - Medium [M100c]
  • 1 Large Sample [M100d]
Item Number
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Biotite - Mica group (black, lustrous cleavage plates)

  • 10 Pack - Small [M110b]
  • 10 Pack - Medium [M110c]
  • 1 Large Sample [M110d]
Item Number
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Bornite (iridescent blue w/sulfides) (Sold Out)

  • 10 Pack - Small [M115b]
Item Number
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Calcite - White, Carmel (rhombohedral cleavage)

  • 10 Pack - Small [M121b]
  • 10 Pack - Medium [M121c]
  • 1 Large Sample [M121d]
Item Number
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Calcite - Iceland Spar (rhombohedral cleavage)

  • 10 Pack - Small [M125b]
  • 10 Pack - Medium [M125c]
  • 1 Large Sample [M125d]
Item Number
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Calcite - Green (some rhombohedral cleavage habit)

  • 10 Pack - Small [M124b]
  • 10 Pack - Medium [M124c]
  • 1 Large Sample [M124d]
Item Number
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Calcite - Orange (little to no cleavage discernable)

  • 10 Pack - Small [M126b]
  • 10 Pack - Medium [M126c]
  • 1 Large Sample [M126d]
Item Number
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Calcite - Lt. Blue (some cleavage discernable)

  • 10 Pack - Small [M120b]
  • 10 Pack - Medium [M120c]
  • 1 Large Sample [M120d]
Item Number
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Calcite - Black (shows rhombohedral cleavage)

  • 10 Pack - Small [M119b]
  • 10 Pack - Medium [M119c]
  • 1 Large Sample [M119d]
Item Number
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Celestite - Lt. Blue (massive to cleavable, some geode parts)

  • 10 Pack - Small [M135b]
  • 10 Pack - Medium [M135c]
  • 1 Large Sample [M135d]
Item Number
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Chalcopyrite (brassy yellow, in rock matrix)

  • 10 Pack - Small [M150b]
  • 10 Pack - Medium [M150c]
  • 1 Large Sample [M150d]
Item Number
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Chlorite (massive, greenish, schistose)

  • 10 Pack - Small [M170b]
  • 10 Pack - Medium [M170c]
  • 1 Large Sample [M170d]
Item Number
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Chromite (black massive, ore of Chromium)

  • 10 Pack - Small [M180b]
  • 10 Pack - Medium [M180c]
  • 1 Large Sample [M180d]
Item Number
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Chrysocolla (greenish-blue, copper bearing mineral, in rock matrix)

  • 10 Pack - Small [M185b]
  • 10 Pack - Medium [M185c]
  • 1 Large Sample [M185d]
Item Number
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Copper Ore - mixture of Azurite & Malachite in rock matrix

  • 10 Pack - Small [M204b]
  • 10 Pack - Medium [M204c]
  • 1 Large Sample [M204d]
Item Number
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Copper - Native; hackley, sharp jagged edges (chemical processed for shine)

  • 1 Small Specimen [M200b]
  • 1 Medium Specimen [M210c]
Item Number
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Copper - Nugget; natural but tumbled and chemical processed for shine

  • 1 Small Specimen [M201b]
  • 1 Medium Specimen [M201c]
Item Number
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Corundum (Emery - black)

  • 10 Pack - Small [M210b]
  • 10 Pack - Medium [M210c]
Item Number
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Dolomite - Pink Crystal clusters

  • 10 Pack - Small [M230b]
  • 10 Pack - Medium [M230c]
Item Number
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Dolomite - Lt. Tan, Lt. Gray to Pinkish

  • 10 Pack - Small [M235b]
  • 10 Pack - Medium [M235c]
  • 1 Large Sample [M235d]
Item Number
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Epidote - (yellowish-green, massive)

  • 10 Pack - Small [M238b]
  • 10 Pack - Medium [M238c]
  • 1 Large Sample [M238d]
Item Number
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Fluorite - Green/Purple (cleavable)

  • 10 Pack - Small [M260b]
  • 10 Pack - Medium [M260c]
  • 1 Large Sample [M260d]
Item Number
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Fluorite - Green (massive)

  • 10 Pack - Small [M265b]
  • 10 Pack - Medium [M265c]
  • 1 Large Sample [M265d]
Item Number
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Fluorite - Octahedron crystal (about 0.75" to 1.0")

  • 1 Small Specimen [M262a]
Item Number
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Galena (cleavable) - Lead Sulfide; wash hands after handling (Limited Supply)

  • 10 Pack - Small [M280b]
  • 1 Large Sample [M280d]
Item Number
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Galena (in rock) - Lead Sulfide; wash hands after handling (Limited Supply)

  • 10 Pack - Small [M281b]
  • 1 Large Sample [M281d]
Item Number
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Garnet - Almandine (gemstone, dark brownish-red)

  • 5 Pack - Small [M023b]
  • 5 Pack - Medium [M023c]
Item Number
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Garnet - Andradite (gemstone, in rock matrix with other minerals)

  • 5 Pack - Small [M024b]
  • 5 Pack - Medium [M024c]
  • 1 Large Sample [M024d]
Item Number
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Graphite (black, high-grade, foliated, greasy feel) (Limited Supply)

  • 10 Pack - Small [M311b]
  • 1 Large Sample [M311d]
Item Number
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Gypsum - Alabaster (white to light pink, massive)

  • 10 Pack - Small [M320b]
  • 10 Pack - Medium [M320c]
  • 1 Large Sample [M320d]
Item Number
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Gypsum - Satin Spar (white, fibrous, silky luster)

  • 10 Pack - Small [M324b]
  • 10 Pack - Medium [M324c]
  • 1 Large Sample [M324d]
Item Number
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Gypsum - Selenite (mostly transparent, cleavable)

  • 10 Pack - Small [M325b]
  • 10 Pack - Medium [M325c]
  • 1 Large Sample [M325d]
Item Number
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Gypsum Selenite - Desert Rose; crystal cluster

  • 5 Pack - Small [M220b]
  • 5 Pack - Medium [M220c]
  • 1 Large Sample [M220d]
Item Number
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Halite (mostly clear and cleavable)

  • 10 Pack - Small [M330b]
  • 10 Pack - Medium [M330c]
  • 1 Large Sample [M330d]
Item Number
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Halite - Salt (massive, clear to whitish; see Sedimentary for Rock Salt)

  • 10 Pack - Small [M335b]
  • 10 Pack - Medium [M335c]
  • 1 Large Sample [M335d]
Item Number
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Hematite - Specular (black, glistening)

  • 10 Pack - Small [M340b]
  • 10 Pack - Medium [M340c]
  • 1 Large Sample [M340d]
Item Number
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Hematite - Earthy (red, ochre and massive)

  • 10 Pack - Small [M345b]
  • 10 Pack - Medium [M345c]
  • 1 Large Sample [M345d]
Item Number
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Hematite - Hard (red to dark gray, massive)

  • 10 Pack - Small [M346b]
  • 10 Pack - Medium [M346c]
  • 1 Large Sample [M346d]
Item Number
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Hornblende (massive with some crystal cleavage) (Limited Supply)

  • 10 Pack - Small [M350b]
Item Number
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Hornblende - Prismatic (cleavable)

  • 10 Pack - Small [M351b]
  • 10 Pack - Medium [M351c]
  • 1 Large Sample [M351d]
Item Number
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Ilmenite - Black/Steel Gray (Titanium ore)

  • 10 Pack - Small [M360b]
  • 10 Pack - Medium [M360c]
  • 1 Large Sample [M360d]
Item Number
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Kaolin/Kaolinite (white to tan, massive)

  • 10 Pack - Small [M379b]
  • 10 Pack - Medium [M379c]
  • 1 Large Sample [M379d]
Item Number
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Kyanite - Blades (blue) in matrix rock or as individual blades

  • 10 Pack - Small [M381b]
  • 10 Pack - Medium [M381c]
Item Number
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Kyanite - Light Blue (massive, small crystals in matrix) (Limited Supply)

  • 10 Pack - Small [M382b]
Item Number
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Lepidolite - micaceous, massive, lavender (secondary source of Lithium)

  • 10 Pack - Small [M390b]
  • 10 Pack - Medium [M390c]
Item Number
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Lepidolite - Mica group, platy, lavender (secondary source of Lithium)

  • 10 Pack - Small [M391b]
  • 10 Pack - Medium [M391c]
  • 1 Large Sample [M391d]
Item Number
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Limonite (yellow to brown, massive)

  • 10 Pack - Small [M400b]
  • 10 Pack - Medium [M400c]
  • 1 Large Sample [M400d]
Item Number
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Magnetite (black, can show metallic luster, magnetic)

  • 10 Pack - Small [M420b]
  • 10 Pack - Medium [M420c]
  • 1 Large Sample [M420d]
Item Number
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Magnetite - Lodestone - Nature's True Magnet (brownish-black)

  • 1 Small Specimen [M410b]
  • 1 Medium Specimen [M410c]
  • 1 Large Specimen [M410d]
Item Number
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Malachite - Green (massive)

  • 10 Pack - Small [M430b]
  • 10 Pack - Medium [M430c]
Item Number
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Microcline - Potassium K-Feldspar (pinkish to salmon color, cleavable)

  • 10 Pack - Small [M240b]
  • 10 Pack - Medium [M240c]
  • 1 Large Sample [M240d]
Item Number
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Microcline - Potash Feldspar group (whitish to cream color, cleavable)

  • 10 Pack - Small [M435b]
  • 10 Pack - Medium [M435c]
  • 1 Large Sample [M435d]
Item Number
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Molybdenite (small veins in matrix, ore of Molybdenite)

  • 10 Pack - Small [M440b]
  • 10 Pack - Medium [M440c]
  • 1 Large Sample [M440d]
Item Number
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Muscovite - Mica group (cleavage sheets)

  • 10 Pack - Small [M450b]
  • 10 Pack - Medium [M450c]
  • 1 Large Sample [M450d]
Item Number
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Olivine (coarse-grained with Peridot in Basalt matrix) (Limited Supply)

  • 1 Large Specimen (2.50") [M465c]
  • 1 X-Large Specimen (3.5"+) [M465d]
Item Number
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Olivine - Light Green (massive, fine to medium-grained)

  • 10 Pack - Small [M460b]
  • 10 Pack - Medium [M460c]
  • 1 Large Sample [M460d]
Item Number
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Phlogopite - Mica group (brown cleavage sheets)

  • 10 Pack - Small [M490b]
  • 10 Pack - Medium [M490c]
  • 1 Large Sample [M490d]
Item Number
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Plagioclase group - Albite (light bluish-gray), may show twinning

  • 10 Pack - Small [M020b]
  • 10 Pack - Medium [M020c]
  • 1 Large Sample [M020d]
Item Number
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Plagioclase group - Soda-lime Feldspar (bluish-gray, massive, small cleavages)

  • 10 Pack - Small [M495b]
  • 10 Pack - Medium [M495c]
  • 1 Large Sample [M495d]
Item Number
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Plagioclase Labradorite - Calcium enriched Feldspar (can show iridescence, various colors)

  • 10 Pack - Small [M496b]
  • 10 Pack - Medium [M496c]
  • 1 Large Sample [M496d]
Item Number
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Pyrite (brass-yellow, crystalline to massive)

  • 10 Pack - Small [M504b]
  • 10 Pack - Medium [M504c]
  • 1 Large Sample [M504d]
Item Number
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Pyrolusite (black, massive, ore of Manganese)

  • 10 Pack - Small [M507b]
  • 10 Pack - Medium [M507c]
Item Number
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Pyrrhotite - Nickel ore (brassy to bronze, massive)

  • 10 Pack - Small [M500b]
  • 10 Pack - Medium [M500c]
  • 1 Large Sample [M500d]
Item Number
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Rhodonite (rose-pink, Manganese oxide veins, tarnishs to black)

  • 10 Pack - Small [M508b]
  • 10 Pack - Medium [M508c]
  • 1 Large Sample [M508d]
Item Number
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Quartz - Agate (multi-colored, some banding)

  • 10 Pack - Small [M511b]
  • 10 Pack - Medium [M511c]
  • 1 Large Sample [M511d]
Item Number
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Quartz - Amethyst (geode crystal pieces)

  • 10 Pack - Small [M521b]
  • 10 Pack - Medium [M521c]
  • 1 Large Sample [M521d]
Item Number
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Quartz - Aventurine; sea green (Sold Out)

  • 10 Pack - Small [M520b]
  • 10 Pack - Medium [M520c]
  • 1 Large Sample [M520d]
Item Number
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Quartz - Citrine; Clear/Orangish-Yellow

  • 15 Pack - Small [M518b]
  • 1 Large Sample [M518d]
Item Number
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Quartz - Chalcedony (light blue/gray to smoky, partly translucent, waxy)

  • 10 Pack - Small [M522b]
  • 10 Pack - Medium [M522c]
  • 1 Large Sample [M522d]
Item Number
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Quartz - Chert (cream to white massive)

  • 10 Pack - Small [M523b]
  • 1 Large Sample [M523d]
Item Number
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Quartz - Clear/White Crystals (with terminations)

  • 10 Pack - Small [M510b]
  • 10 Pack - Medium [M510c]
  • 1 Large Sample [M510d]
Item Number
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Quartz - Flint (brown to multicolors)

  • 10 Pack - Small [M512b]
  • 10 Pack - Medium [M512c]
  • 1 Large Sample [M512d]
Item Number
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Quartz - Jasper (red to multicolors)

  • 10 Pack - Small [M513b]
  • 10 Pack - Medium [M513c]
  • 1 Large Sample [M513d]
Item Number
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Quartz - Milky (white, massive)

  • 10 Pack - Small [M514b]
  • 10 Pack - Medium [M514c]
  • 1 Large Sample [M514d]
Item Number
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Quartz - Rose (light pink, massive)

  • 10 Pack - Small [M515b]
  • 10 Pack - Medium [M515c]
  • 1 Large Sample [M515d]
Item Number
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Quartz - Rose (best grade, deep pink, crystalline)

  • 10 Pack - Small [M516b]
  • 1 Large Sample [M516d]
Item Number
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Quartz - Silicified Wood (wood replaced by Silica)

  • 10 Pack - Small [M517b]
  • 10 Pack - Medium [M517c]
  • 1 Large Sample [M517d]
Item Number
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Quartz Smoky (light gray to dark smoky) (Limited Supply)

  • 10 Pack - Small [M519b]
Item Number
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Sodalite - Deep Blue (massive, some rock)

  • 10 Pack - Small [M530b]
  • 10 Pack - Medium [M530c]
  • 1 Large Sample [M530d]
Item Number
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Sphalerite (dark brown, massive, small cleavages)

  • 10 Pack - Small [M527b]
  • 1 Large Sample [M527d]
Item Number
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Stibnite - Metallic Gray (crystalline in rock, Antimony Ore, MT)

  • 10 Pack - Small [M536b]
  • 1 Large Sample [M536d]
Item Number
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Sulfur (yellow, massive)

  • 10 Pack - Small [M540b]
  • 10 Pack - Medium [M540c]
  • 1 Large Sample [M540d]
Item Number
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Talc - Gray/Brown (schistose) (Limited Supply)

  • 10 Pack - Small [M550b]
  • 10 Pack - Medium [M550c]
  • 1 Large Sample [M550d]
Item Number
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Talc - Light Green/Gray

  • 10 Pack - Small [M551b]
  • 10 Pack - Medium [M551c]
  • 1 Large Sample [M551d]
Item Number
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Tourmaline - Black (parts of large crystals, may show twinning)

  • 10 Pack - Small [M555b]
  • 1 Large Sample [M555d]
Item Number
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Trona (processed into baking soda)

  • 10 Pack - Small [M570b]
  • 10 Pack - Medium [M570c]
  • 1 Large Sample [M570d]
Item Number
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Tungsten Ore - Scheelite & Wolframite in rock matrix

  • 10 Pack - Small [M587b]
  • 10 Pack - Medium [M587c]
  • 1 Large Sample [M587d]
Item Number
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Wavellite - Green, botryoidal, hydrous aluminum phosphate (Willard Mine, NV)

  • 1 Small Specimen [M583b]
  • 1 Medium Specimen [M583c]
Item Number
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Wavellite - White, botryoidal, hydrous aluminum phosphate (Willard Mine, NV)

  • 1 Small Specimen [M584b]
  • 1 Medium Specimen [M584c]
Item Number
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Wollastonite

  • 10 Pack - Small[M586b]
  • 10 Pack - Medium[M586c]
  • 1 Large Specimen [M586d]
Item Number
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Vermiculite (brown cleavage sheets, altered form of Biotite or Phlogopite)

  • 10 Pack - Small [M580b]
  • 10 Pack - Medium [M580c]
  • 1 Large Sample [M580d]
Item Number
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