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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. 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.


We offers the 3 standard sizes of minerals as illustrated:

small hand

Small - 0.75" to 1.2"
10 pieces in resealable bag.
large hand

Large - 2" x 2" up to 3" x 4"
ONE (1) boxed piece.
medium hand

Medium - 1.25" to 1.75"
10 pieces in resealable bag.

Actinolite (aggregate of green actinolite crystals)

  • 10 Pack - Small [M001b]
  • 1 Large Sample [M001d]
Item Number
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Albite - Plagioclase group (light bluish-gray), some twinning

  • 10 Pack - Small [M020b]
  • 10 Pack - Medium [M020c]
  • 1 Large Sample [M020d]
Item Number
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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 carving)

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

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

  • 10 Pack - Small [M069b]
  • 10 Pack - Medium [M069c]
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 - Sold As Single Specimens

  • 1 Small Sample [M071b]
  • 1 Medium Sample [M071c]
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); Impurities; Limited supply

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

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

  • 10 Pack - Small [M125b]
  • 1 Large Sample [M125d]
Item Number
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Calcite - Orange, Green, or Blue (varieties based on availability)

  • 10 Pack - Small [M126b]
  • 10 Pack - Medium [M126c]
  • 1 Large Sample [M126d]
Item Number
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Calcite - Black (cleavable)

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

  • 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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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]
  • 1 Large Sample [M230d]
Item Number
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Dolomite - Tan to White (granular)

  • 10 Pack - Small [M235b]
  • 10 Pack - Medium [M235c]
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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K-Feldspar - Potassium Feldspar group (cream to pink cleavages)

  • 10 Pack - Small [M240b]
  • 10 Pack - Medium [M240c]
  • 1 Large Sample [M240d]
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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Galena (cleavable)

  • 10 Pack - Small [M280b]
  • 1 Large Sample [M280d]
Item Number
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Galena (massive in rock)

  • 10 Pack - Small [M281b]
  • 1 Large Sample [M281d]
Item Number
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Graphite (black, high-grade, foliated, greasy feel)

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

  • 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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Halite (mostly clear and cleavable)

  • 10 Pack - Small [M330b]
  • 1 Large Sample [M330d]
Item Number
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Halite - Rock Salt (white to red granular)

  • 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)

  • 10 Pack - Small [M350b]
  • 10 Pack - Medium [M350c]
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 - 1" - 2" pcs [M381c]
Item Number
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Kyanite - Light Blue (massive, small crystals in matrix)

  • 10 Pack - Small [M382b]
  • 10 Pack - Medium [M382c]
  • 1 Large Sample [M382d]
Item Number
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Lepidolite - Mica group (cleavable, 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, metallic luster, magnetic)

  • 10 Pack - Small [M420b]
  • 10 Pack - Medium [M420c]
  • 1 Large Sample [M420d]
Item Number
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Malachite - Green (massive)

  • 10 Pack - Small [M430b]
  • 10 Pack - Medium [M430c]
  • 1 Large Sample [M430d]
Item Number
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Microcline - Potash Feldspar group (white, cleavable)

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

  • 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)

  • 10 Pack - Small [M465b]
  • 10 Pack - Medium [M465c]
  • 1 Large Sample [M465d]
Item Number
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Olivine - Light Green (massive, 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 - Soda-lime Feldspar (gray, massive, small cleavages)

  • 10 Pack - Small [M495b]
  • 10 Pack - Medium [M495c]
  • 1 Large Sample [M495d]
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]
  • 1 Large Sample [M507d]
Item Number
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Pyrrhotite (brassy to bronze, massive, Nickel ore; SOLD OUT)

  • 10 Pack - Small [M500b]
Item Number


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

  • 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]
  • 10 Pack - Medium [M523c]
  • 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]
  • 10 Pack - Medium [M516c]
  • 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)

  • 10 Pack - Small [M519b]
  • 10 Pack - Medium [M519c]
Item Number
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Sodalite - Deep Blue (massive, some rock)

  • 10 Pack - Small [M524b]
  • 10 Pack - Medium [M524c]
  • 1 Large Sample [M524d]
Item Number
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Sphalerite (dark brown, massive, small cleavages)

  • 10 Pack - Small [M527b]
  • 10 Pack - Medium [M527c]
  • 1 Large Sample [M527d]
Item Number
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Stibnite - Metallic Gray (crystalline in rock, Antimony ore)

  • 10 Pack - Small [M536b]
  • 10 Pack - Medium [M536c]
  • 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)

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

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

  • 10 Pack - Small [M555b]
  • 10 Pack - Medium [M555c]
  • 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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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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