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New Gemstone
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Self processing natural A-product jadeit..
US $43
Aquamarine,Beryl Mineral Specimens Miner..
US $26.33
Bright-coloured Hemimorphite naturally f..
US $33
New Mineral specimens
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Light blue Hemimorphite Quartz Mineral S..
US $93
Microcline Feldspar Orthoclase Mineral S..
US $23
Manganese-aluminum Garnet Spessartine,Sm..
US $31
Manganese-aluminum Garnet Spessartine,Fe..
US $76
Orthoclase Microcline Albite Feldspar M..
US $16.5
Microcline Feldspar albite and quartz sy..
US $16.5
Fujian, China Aquamarine,Smoky Quartz,Fe..
US $93
Fluorescence Opal Mushroom shaped Feldsp..
US $114.67
Smoky Quartz,Manganese-aluminum Garnet S..
US $110
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Alunite
Name
 Alunite
Chemical
Formula
 KAl3(SO4)2(OH)6
Species
 Sulfates
Crystal
System
 Trigonal
Mohs
Scale
 3-4
Color
 Yellow, red, to reddish brown, colorless if pure; may be white, pale shades of gray,
Luster
 Vitreous, Pearly
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