Minerals Flashcards by Nicole Pyszka

Q

Fingernail

A

2.5

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Q

Penny

A

3

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Q

Knife

A

5.5

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Q

Glass

A

6

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Q

Ceramic

A

7

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Q

Opaque Diaphaneity

A

All light is reflected (Metallic Minerals)

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Q

Translucent Diaphaneity

A

Some light absorbed (most common)

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Q

Transparent Diaphaneity

A

Most light transmitted through

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Q

pyrite - use

A

“fool’s gold,” sulphuric acid

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Q

chalcopyrite - use

A

copper ore, wire

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Q

galena - use

A

lead ore, car batteries

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Q

sphalerite - use

A

zinc ore, galvanizing iron

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Q

magnetite - use

A

iron ore, steel

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Q

talc - use

A

talcum powder

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Q

gypsym - use

A

plaster, cement, wallboard

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Q

calcite - use

A

flux in steel making, cement (lime)

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Q

halite - use

A

road salt, sodium/chlorine

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Q

graphite - use

A

lubricant, steel hardening, high tech metal

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Q

muscovite - use

Study These Flashcards

A

windows, insulators

Q

biotite, amphibole, pyroxene - use

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A

rock forming mineral

Q

orthoclase - use

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A

gemstones, ceramics

Q

plagioglase - use

Study These Flashcards

A

gemstones

Q

quartz - use

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A

gemstones, glass, electronics

Q

olivine - use

Study These Flashcards

A

gemstones

clevage types

basal, 2 directions(90 or not), cubic, rhombohedral, none

olivine

green

graphite

grey, basal

galena

silvery blue, opaque, cubic

sphalerite

brown grey, more than 3

chalcopyrite

yellow gold, opaque

pyrite

opaque

magnetite

dark grey, opaque

biotite

golden black, basal

muscovite

silvery beige, transparent, basal

plagioclase

white grey, 2@90

orthoclase

pink, 2@90

pyroxene

black-green, hints of yellow-brown, 2@90

amphibole

dark grey, 2, not 90

quartz

white, transparent

halite

smoky white, transparent, cubic

calcite

pink beige, rhombohedral

gypsum

transparent white, basal

talc

dirty white, basal

ferromagnesium (dark) silicates

olivine, pyroxene, amphibole, biotite

non-ferromagnesium (light) silicates

muscovite, feldspar, quartz

feldspar

K - Orthoclase, Ca-Na - plagioclase