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Mineral Specimens


Rocks and Minerals





Minerals are naturally occurring inorganic substances, represented by a specific chemical formula and having a crystal structure. Minerals are the fundumental building blocks of rocks which can be aggregates of minerals or non-minerals and do not have a specific chemical composition.

Rockman's mineral specimens are hand broken as opposed to being crushed which helps keep cleavage and fracture characteristics intact. This is a partial lists. If you are looking for a mineral 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 4 standard sizes of minerals listed below:
  • Small Chips range in size from 0.50" to 0.75" and come in a pack of 30 in a resealable bag.

  • Medium Specimens range in size from 0.75" to 1" and come in a pack of 10 in a resealable bag.

  • Large Specimens range in size from 1.25" to 1.75" and come in a pack of 10 in a resealable bag.

  • Hand Specimens range in size from 2" x 3" up to 3" x 4", each piece is in a labeled box.


Albite (plagioclase group, white, striated)

  • 30 Pack - Chips [M020a]
  • 10 Pack - Medium [M020b]
  • 10 Pack - Large [M020c]
  • 1 Large Sample [M020d]
Item Number


Amazonite (green, cleavable)

  • 10 Pack - Medium [M030b]
  • 10 Pack - Large [M030c]
  • 1 Large Sample [M030d]
Item Number


Anhydrite (Angelite, massive, light blue)

  • 30 Pack - Chips [M040a]
  • 10 Pack - Medium [M040b]
  • 10 Pack - Large [M040c]
  • 1 Large Sample [M040d]
Item Number


Apatite (blue to green, CANADA)

  • 30 Pack - Chips [M068a]
  • 10 Pack - Medium [M068b]
  • 10 Pack - Large [M068c]
  • 1 Large Sample [M068d]
Item Number


Aragonite (massive, banded)

  • 30 Pack - Chips [M069a]
  • 10 Pack - Medium [M069b]
  • 10 Pack - Large [M069c]
  • 1 Large Sample [M069d]
Item Number


Aragonite (massive, white)

  • 10 Pack - Medium [M070b]
  • 10 Pack - Large [M070c]
  • 1 Large Sample [M070d]
Item Number


Aragonite (crystal cluster)

  • 10 Pack - Medium [M071b]
  • 10 Pack - Large [M071c]
  • 1 Large Sample [M071d]
Item Number


Augite (pyroxene, prismatic)

  • 30 Pack - Chips [M075a]
  • 10 Pack - Medium [M075b]
  • 10 Pack - Large [M075c]
  • 1 Large Sample [M075d]
Item Number


Barite (white to brown, massive to platy)

  • 30 Pack - Chips [M080a]
  • 10 Pack - Medium [M080b]
  • 10 Pack - Large [M080c]
  • 1 Large Sample [M080d]
Item Number


Bauxite (gray to brown masses, pisolitic texture)

  • 30 Pack - Chips [M090a]
  • 10 Pack - Medium [M090b]
  • 10 Pack - Large [M090c]
  • 1 Large Sample [M090d]
Item Number


Beryl (bluish-green to white)

  • 10 Pack - Medium [M100b]
  • 10 Pack - Large [M100c]
  • 1 Large Sample [M100d]
Item Number


Biotite (mica group, black, lustrous cleavage plates)

  • 30 Pack - Chips [M110a]
  • 10 Pack - Medium [M110b]
  • 10 Pack - Large [M110c]
  • 1 Large Sample [M110d]
Item Number


Bornite (iridescent blue w/sulfides)

  • 10 Pack - Medium [M115b]
  • 10 Pack - Large [M115c]
  • 1 Large Sample [M115d]
Item Number


Calcite (rhombohedral cleavages, white to translucent)

  • 30 Pack - Chips [M121a]
  • 10 Pack - Medium [M121b]
  • 10 Pack - Large [M121c]
  • 1 Large Sample [M121d]
Item Number


Calcite (Iceland Spar, OPTICAL, average grade)

  • 30 Pack - Chips [M125a]
  • 10 Pack - Medium [M125b]
  • 10 Pack - Large [M125c]
  • 1 Large Sample [M125d]
Item Number


Calcite (blue, green, orange varieties—based on availability)

  • 30 Pack - Chips [M126a]
  • 10 Pack - Medium [M126b]
  • 10 Pack - Large [M126c]
  • 1 Large Sample [M126d]
Item Number


Chalcopyrite (brassy yellow, some rock)

  • 30 Pack - Chips [M150a]
  • 10 Pack - Medium [M150b]
  • 10 Pack - Large [M150c]
  • 1 Large Sample [M150d]
Item Number


Chlorite (massive, greenish, schistose)

  • 30 Pack - Chips [M170a]
  • 10 Pack - Medium [M170b]
  • 10 Pack - Large [M170c]
  • 1 Large Sample [M170d]
Item Number


Chromite (black massive, ore of Chromium, Montana)

  • 30 Pack - Chips [M180a]
  • 10 Pack - Medium [M180b]
  • 10 Pack - Large [M180c]
  • 1 Large Sample [M180d]
Item Number


Chrysocolla (blue green coatings and massive)

  • 10 Pack - Medium [M185b]
  • 10 Pack - Large [M185c]
  • 1 Large Sample [M185d]
Item Number


Corundum (Emery - black granular)

  • 10 Pack - Medium [M210b]
Item Number


Dolomite (pink crystal clusters)

  • 10 Pack - Medium [M230b]
  • 10 Pack - Large [M230c]
  • 1 Large Sample [M230d]
Item Number


Dolomite (tan to white, granular)

  • 30 Pack - Chips [M235a]
  • 10 Pack - Medium [M235b]
  • 10 Pack - Large [M235c]
  • 1 Large Sample [M235d]
Item Number


Epidote (green, massive)

  • 30 Pack - Chips [M238a]
  • 10 Pack - Medium [M238b]
  • 10 Pack - Large [M238c]
  • 1 Large Sample [M238d]
Item Number


Fluorite (cleavable, green)

  • 30 Pack - Chips [M260a]
  • 10 Pack - Medium [M260b]
  • 10 Pack - Large [M260c]
  • 1 Large Sample [M260d]
Item Number


Fluorite (massive, green)

  • 30 Pack - Chips [M265a]
  • 10 Pack - Medium [M265b]
  • 10 Pack - Large [M265c]
  • 1 Large Sample [M265d]
Item Number


Galena (cleavable)

  • 30 Pack - Chips [M280a]
  • 10 Pack - Medium [M280b]
  • 10 Pack - Large [M280c]
  • 1 Large Sample [M280d]
Item Number


Galena (massive in rock)

  • 30 Pack - Chips [M281a]
  • 10 Pack - Medium [M281b]
  • 10 Pack - Large [M281c]
  • 1 Large Sample [M281d]
Item Number


Graphite (black, high grade, foliated, greasy feel)

  • 10 Pack - Medium [M311b]
  • 10 Pack - Large [M311c]
  • 1 Large Sample [M311d]
Item Number


Gypsum - Alabaster (massive, white to pink)

  • 30 Pack - Chips [M320a]
  • 10 Pack - Medium [M320b]
  • 10 Pack - Large [M320c]
  • 1 Large Sample [M320d]
Item Number


Gypsum - Satin Span (white, fibrous, silky luster)

  • 10 Pack - Medium [M324b]
  • 10 Pack - Large [M324c]
  • 1 Large Sample [M324d]
Item Number


Gypsum - Selenite (transparent cleavage)

  • 30 Pack - Chips [M325a]
  • 10 Pack - Medium [M325b]
  • 10 Pack - Large [M325c]
  • 1 Large Sample [M325d]
Item Number


Halite (cleavable)

  • 30 Pack - Chips [M330a]
  • 10 Pack - Medium [M330b]
  • 10 Pack - Large [M330c]
  • 1 Large Sample [M330d]
Item Number


Halite (granular, Rock Salt)

  • 10 Pack - Medium [M335b]
  • 10 Pack - Large [M335c]
  • 1 Large Sample [M335d]
Item Number


Hematite (specular, black, glistening)

  • 30 Pack - Chips [M340a]
  • 10 Pack - Medium [M340b]
  • 10 Pack - Large [M340c]
  • 1 Large Sample [M340d]
Item Number


Hematite (ochre, red, massive)

  • 30 Pack - Chips [M345a]
  • 10 Pack - Medium [M345b]
  • 10 Pack - Large [M345c]
  • 1 Large Sample [M345d]
Item Number


Hematite (massive, gray to black, some red)

  • 30 Pack - Chips [M346a]
  • 10 Pack - Medium [M346b]
  • 10 Pack - Large [M346c]
  • 1 Large Sample [M346d]
Item Number


Hornblende (massive)

  • 30 Pack - Chips [M350a]
  • 10 Pack - Medium [M350b]
  • 10 Pack - Large [M350c]
  • 1 Large Sample [M350d]
Item Number


Hornblende (prismatic, cleavable)

  • 30 Pack - Chips [M351a]
  • 10 Pack - Medium [M351b]
  • 10 Pack - Large [M351c]
  • 1 Large Sample [M351d]
Item Number


Kaolin (white to tan, massive)

  • 30 Pack - Chips [M379a]
  • 10 Pack - Medium [M379b]
  • 10 Pack - Large [M379c]
  • 1 Large Sample [M379d]
Item Number


Kyanite (crystalline, white blades some blue)

  • 30 Pack - Chips [M382a]
  • 10 Pack - Medium [M382b]
  • 10 Pack - Large [M382c]
  • 1 Large Sample [M382d]
Item Number


Lepidolite (mica group, cleavable, lavender, secondary source of lithium)

  • 30 Pack - Chips [M391a]
  • 10 Pack - Medium [M391b]
  • 10 Pack - Large [M391c]
Item Number


Limonite (yellow to brown, massive)

  • 30 Pack - Chips [M400a]
  • 10 Pack - Medium [M400b]
  • 10 Pack - Large [M400c]
  • 1 Large Sample [M400d]
Item Number


Magnetite (black, coarse crystalline, metallic luster, magnetic)

  • 30 Pack - Chips [M420a]
  • 10 Pack - Medium [M420b]
  • 10 Pack - Large [M420c]
  • 1 Large Sample [M420d]
Item Number


Malachite (green, massive, good grade)

  • 30 Pack - Chips [M430a]
  • 10 Pack - Medium [M430b]
  • 10 Pack - Large [M430c]
  • 1 Large Sample [M430d]
Item Number


Microcline (potash feldspar group, white to pink cleavages)

  • 30 Pack - Chips [M435a]
  • 10 Pack - Medium [M435b]
  • 10 Pack - Large [M435c]
  • 1 Large Sample [M435d]
Item Number


Molybdenite (small veins in matrix)

  • 30 Pack - Chips [M440a]
  • 10 Pack - Medium [M440b]
  • 10 Pack - Large [M440c]
  • 1 Large Sample [M440d]
Item Number


Muscovite (mica group, cleavage sheets, some show herringbone structure)

  • 30 Pack - Chips [M450a]
  • 10 Pack - Medium [M450b]
  • 10 Pack - Large [M450c]
  • 1 Large Sample [M450d]
Item Number


Olivine (massive, medium grained, light green)

  • 30 Pack - Chips [M460a]
  • 10 Pack - Medium [M460b]
  • 10 Pack - Large [M460c]
  • 1 Large Sample [M460d]
Item Number


Phlogopite (mica group, pale brown cleavage sheets)

  • 30 Pack - Chips [M490a]
  • 10 Pack - Medium [M490b]
  • 10 Pack - Large [M490c]
  • 1 Large Sample [M490d]
Item Number


Plagioclase (soda-lime feldspar, gray, small cleavages)

  • 30 Pack - Chips [M495a]
  • 10 Pack - Medium [M495b]
  • 10 Pack - Large [M495c]
  • 1 Large Sample [M495d]
Item Number


Pyrite (brass-yellow, crystaline to massive)

  • 30 Pack - Chips [M504a]
  • 10 Pack - Medium [M504b]
  • 10 Pack - Large [M504c]
  • 1 Large Sample [M504d]
Item Number


Pyrolusite (black, massive, ore of manganese)

  • 30 Pack - Chips [M507a]
  • 10 Pack - Medium [M507b]
  • 10 Pack - Large [M507c]
  • 1 Large Sample [M507d]
Item Number


Pyrrhotite (brassy to bronze, massive, weakly magnetic, nickel ore)

  • 30 Pack - Chips [M500a]
  • 10 Pack - Medium [M500b]
  • 10 Pack - Large [M500c]
  • 1 Large Sample [M500d]
Item Number


Rhodonite (rose-pink, manganese oxide veins, tarnishs to black)

  • 30 Pack - Chips [M508a]
  • 10 Pack - Medium [M508b]
  • 10 Pack - Large [M508c]
  • 1 Large Sample [M508d]
Item Number


Quartz Agate (multi-colored)

  • 30 Pack - Chips [M010a]
  • 10 Pack - Medium [M010b]
  • 10 Pack - Large [M010c]
  • 1 Large Sample [M010d]
Item Number


Quartz Amethyst (geode crystal pieces)

  • 30 Pack - Chips [M035a]
  • 10 Pack - Medium [M035b]
  • 10 Pack - Large [M035c]
  • 1 Large Sample [M035d]
Item Number


Quartz Chalcedony (gray to smoky, partly translucent, waxy, fluoresces green in short wave)

  • 30 Pack - Chips [M140a]
  • 10 Pack - Medium [M140b]
  • 10 Pack - Large [M140c]
  • 1 Large Sample [M140d]
Item Number

Quartz Chert (cream to white massive)

  • 30 Pack - Chips [M160a]
  • 10 Pack - Medium [M160b]
  • 10 Pack - Large [M160c]
  • 1 Large Sample [M160d]
Item Number


Quartz Rock Crystals (single clear to white crystals with terminations)

  • 10 Pack - Medium [M510b]
  • 10 Pack - Large [M510c]
  • 1 Large Sample [M510d]
Item Number


Quartz Flint (brown to multicolors)

  • 30 Pack - Chips [M512a]
  • 10 Pack - Medium [M512b]
  • 10 Pack - Large [M512c]
  • 1 Large Sample [M512d]
Item Number


Quartz Jasper (colors vary)

  • 30 Pack - Chips [M513a]
  • 10 Pack - Medium [M513b]
  • 10 Pack - Large [M513c]
  • 1 Large Sample [M513d]
Item Number


Quartz Milky (white, massive)

  • 30 Pack - Chips [M514a]
  • 10 Pack - Medium [M514b]
  • 10 Pack - Large [M514c]
  • 1 Large Sample [M514d]
Item Number


Quartz Rose (light pink, massive)

  • 30 Pack - Chips [M515a]
  • 10 Pack - Medium [M515b]
  • 10 Pack - Large [M515c]
  • 1 Large Sample [M515d]
Item Number


Quartz Rose (best grade, deep pink, crystalline)

  • 30 Pack - Chips [M516a]
  • 10 Pack - Medium [M516b]
  • 10 Pack - Large [M516c]
  • 1 Large Sample [M516d]
Item Number


Quartz Silicified Wood (wood replaced by silica)

  • 30 Pack - Chips [M517a]
  • 10 Pack - Medium [M517b]
  • 10 Pack - Large [M517c]
  • 1 Large Sample [M517d]
Item Number


Quartz Smokey (light gray to dark smokey)

  • 30 Pack - Chips [M519a]
  • 10 Pack - Medium [M519b]
  • 10 Pack - Large [M519c]
  • 1 Large Sample [M519d]
Item Number


Sodalite (deep blue massive, some rock)

  • 30 Pack - Chips [M524a]
  • 10 Pack - Medium [M524b]
  • 10 Pack - Large [M524c]
  • 1 Large Sample [M524d]
Item Number


Sphalerite (massive, small cleavages)

  • 30 Pack - Chips [M527a]
  • 10 Pack - Medium [M527b]
  • 10 Pack - Large [M527c]
  • 1 Large Sample [M527d]
Item Number


Stibnite (antimony ore, metallic gray, crystalline in rock)

  • 10 Pack - Medium [M536b]
  • 10 Pack - Large [M536c]
  • 1 Large Sample [M536d]
Item Number


Sulfur (bright yellow, massive)

  • 30 Pack - Chips [M540a]
  • 10 Pack - Medium [M540b]
  • 10 Pack - Large [M540c]
  • 1 Large Sample [M540d]
Item Number


Talc (gray-green, schistose)

  • 30 Pack - Chips [M550a]
  • 10 Pack - Medium [M550b]
  • 10 Pack - Large [M550c]
  • 1 Large Sample [M550d]
Item Number


Talc (light green, massive, some with small pyrite crystals)

  • 30 Pack - Chips [M551a]
  • 10 Pack - Medium [M551b]
  • 10 Pack - Large [M551c]
  • 1 Large Sample [M551d]
Item Number


Talc (pink, foliated)

  • 30 Pack - Chips [M552a]
  • 10 Pack - Medium [M552b]
  • 10 Pack - Large [M552c]
  • 1 Large Sample [M552d]
Item Number


Tourmaline (parts of large crystals)

  • 30 Pack - Chips [M555a]
  • 10 Pack - Medium [M555b]
  • 10 Pack - Large [M555c]
  • 1 Large Sample [M555d]
Item Number


Trona (processed into baking soda)

  • 10 Pack - Medium [M570b]
  • 10 Pack - Large [M570c]
  • 1 Large Sample [M570d]
Item Number


Vermiculite (brown cleavages, altered form of biotite or phlogophite)

  • 30 Pack - Chips [M580a]
  • 10 Pack - Medium [M580b]
  • 10 Pack - Large [M580c]
  • 1 Large Sample [M580d]
Item Number



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