Term
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Definition
actinolite:
dark to pale green
forms needles, prisms, good cleavage |
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Term
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Definition
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Term
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Definition
APATITE
pale colors
brittle
forms hexagonal prisms
conchoidal fracture
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Term
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Definition
Augite
2 strong clevages
forms 8 sided prisms |
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Term
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Definition
Azurite
distinctive blue color
forms small crystals
brittle
effervesces in HCI |
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Term
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Definition
Barite
multi colored to white
brittle heavy
good to excellent clevage
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Term
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Definition
Bauxite
brown rock with shades of grey white and yellow
contains pea sized structures |
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Term
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Definition
biotite mica
black
excellent cleavage
splits easily into thin flexible sheets |
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Term
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Definition
Bornite
brownish bronze, tarnishes strangely
cleavage absent
harndess 3 |
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Term
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Definition
calcite
colerless or pale
excellent clevage in 3 directons, forms prisms
reacts with HCI |
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Term
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Definition
Chalcedony
laminations, light colors
lustor is waxy
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Term
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Definition
Chalcopyrite
bright silvery gold tarnishes gold
no cleavege, brittle
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