Marin Mineral
Garnet Hill Mine
November 25, 2013  ·  7 specimens

Garnet Hill is a well known locality that has produced Epidote and Andradite specimens since the 1920s.  The prize specimens are the large, well formed Epidote crystals and extremely rare psuedomorphs. The locality is also known for abundant Andradite of moderate quality.  It is the different types of replacements of Quartz and Epidote after Andradite that collectors fail to notice, some with hollow casts in complete dodecahedral form. This batch focuses on such psuedomorphs and includes a variety of great examples. 

C103 - Epidote after Andradite  sold

Garnet Hill Mine, Claveras Co., California
Miniature - 3.5 x 2.6 x 2.0 cm



(click on an image to enlarge)

Epidote after Andradite Epidote after Andradite Epidote after Andradite

Superb example of Epidote that has replaced Andradite, main crystal is 2.6cm wide. Oddly, a small area of the crystal has been replaced by Quartz.


C105 - Andradite  sold

Garnet Hill Mine, Claveras Co., California
Small Cabinet - 7 x 5 x 3 cm



(click on an image to enlarge)

Andradite Andradite

Near floater specimen of Andradite with crystals on all side. The majority of the crystals are a satiny light red with some darker red crystals with high luster on the front side.


C106 - Andradite, Epidote, Quartz  sold

Garnet Hill Mine, Claveras Co., California
Miniature - 4 x 3.5 x 3.5 cm



(click on an image to enlarge)

Andradite, Epidote, Quartz Andradite, Epidote, Quartz

Portion of a large, hollow Andradite crystal now forms the base for a jackstraw cluster of Quartz and Epidote that grew within the former larger crystal of Andradite.


C107 - Andradite, Epidote, Quartz  sold

Garnet Hill Mine, Claveras Co., California
Miniature - 5 x 4.5 x 2.5 cm



(click on an image to enlarge)

Andradite, Epidote, Quartz Andradite, Epidote, Quartz

Portion of a large, hollow Andradite crystal with the interior lined by crystals of Epidote and Quartz.


C109 - Andradite  sold

Garnet Hill Mine, Claveras Co., California
Miniature - 3.5 x 3 x 3 cm



(click on an image to enlarge)

Andradite Andradite

Large single Andradite crystal that is unusually freestanding for the locale. On the underside you can view the growth history of the crystal like rings on tree, including past zones of Epidote.


C110 - Andradite, Epidote  sold

Garnet Hill Mine, Claveras Co., California
Small Cabinet - 8 x 5 x 5 cm



(click on an image to enlarge)

Andradite, Epidote Andradite, Epidote Andradite, Epidote

A large, stunning example of Andradite and Andradite replaced by Epidote. The sharply formed crystal of Epidote after Andradite at the top is 2.5cm in size. A great example showing multiple alternating psuedomorphs back and forth from Andradite to Epidote.


C111 - Quartz after Andradite  sold

Garnet Hill Mine, Claveras Co., California
Small Cabinet - 7 x 6.5 x 3 cm



(click on an image to enlarge)

Quartz after Andradite Quartz after Andradite Quartz after Andradite

Large single Andradite crystal 6cm across that is now hollow and nearly completely replaced by Quartz. The interior of the crystal is filled with a lattice-work of Quartz crystals. An excellent example of this replacement.


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