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WardsSci000475
Description:
Pure, large, transparent-to-translucent cleavages, Mohs’ hardness of 4.
Description:
White, massive, coarse crystalline vein, Mohs’ hardness of 7.
Description:
Black, Micaceous, glittery metallic.
Description:
Amphibole group; dark greenish black cleavages, somewhat columnar.
Description:
Pure, white, earthy “China clay”.
Description:
Clear, euhedral points and sections.
Description:
Crystals and crystal sections up to 1", Mohs’ hardness of 9.
Description:
Brown, earthy, massive; used for yellow pigment.
Catalog Number:
(470025-152)
Description:
Examples of the More Important Minerals Found in Rocks
Description:
Feldspar group; pink cleavages showing perthitic texture, common potassium feldspar, Mohs’ hardness of 6.
Catalog Number:
(470025-258)
Description:
Beginner’s Collection Illustrates Important Physical Properties
Description:
Shiny crystal clusters and crystalline groups.
Description:
Feldspar group; good cleavages of pure soda lime feldspar; most show twinning and labradorescence.
Description:
Fragments in natural condition, many showing concave forms and fusion crusts. Sizes are approximate.
Description:
Spinel group; iron-black, massive; natural magnet.
Catalog Number:
(470025-338)
Description:
Examples of Different Forms of Breakage in Minerals
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Stock for this item is limited, but may be available in a warehouse close to you. Please make sure that you are logged in to the site so that available stock can be displayed. If the is still displayed and you need assistance, please call us at 1-800-962-2660.
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