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Apachite

Named for the Apache Native American Indians who inhabit the area around the type locality of the mineral at the Christmas mine in Arizona, USA. The only other locality where Apachite can be found in New Mexico, USA at Bear Mountain. Apachite is “a retrograde metamorphic o mesogene mineral, formed at the expense of a prograde calc-silicate and sulfide assemblage in tacites” and it is generally found in fractures or cracked areas in garnet-diopside rocks as a replacement for the silicates and calcite. Associated minerals include kinoite, gilalite, stringhamite, junitoite, clinohedrite, xonotlite, apophyllite, calcite, and torbermorite.
Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/apachite.pdf
- Formula
- Cu2+9Si10O29·11H2O
- Crystal System
- Monoclinic
- Crystal Habit
- Radial, Spherical
- Color
- blue
- Streak
- light blue
- Class
- Monoclinic
- Hardness
- 2
- WebMineral
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Apachite from Christmas mine, Gila Co., Arizona, United States

Grape like cluster of 0.3mm spheroidal crystals of Apachite.
Light blue spheroidal crystals to 0.3mm.