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Quartz With Chlorite Inclusions

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SNJ95084

Quartz With Chlorite Inclusions

Description Tabs

Description
Locality: 
Animas District, San Juan County, Colorado, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
5.5 × 7 × 6 cm
Largest Crystal: 
2.20cm
Description

  Chlorite included quartz crystals are less than common in the San Juans. I've found 3 localities where only a few have been recovered in the Silverton area. There are some small, associated pyrite crystals present. The freeze/thaw cycle has caused some slight chipping.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

Chlorite

Synonym Of: 

Chlorite Group

Group Parent: 
Chlorite
Crystal System: 
Monoclinic
Hardness: 
2 - 2.5
Colour: 
Green, Grey, Brown
Streak: 
colourless
sanjuanmtnrocks