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Goethite Pseudomorphing Siderite Crystal Thumbnail Mineral Specimen Colorado


Sale price $15.00 Regular price $17.50

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Goethite Pseudomorphing Siderite Crystal. Very sharp, precise and pristine crystal.

Dimensions (millimeters): 18 x 15 x 10 (small gem)

Dimensions (inches): .7 x .6 x .4 (thumbnail treasure)

Origins: mined at Lake George, Park County, Colorado , USA

Housed in a small acrylic museum box "Perky Box". from the Tom Yancy collection

A pseudomorph is when one mineral, molecule by molecule, replaces another mineral and keeps the shape of the original mineral. Here the shape is that of Siderite twin crystal but the mineral is now Goethite.

Two generations of Fenders have traveled North America for over 50 years in search of estate gem, fossil and mineral collections. We are proud to transition these vintage stones to new homes so another generation can appreciate their beauty.

Save Money With Combined Shipping. The highest combined rate for the USA is $9.99, select “Flat Rate for Heavy Packages”.  This is Priority Shipping.

Coupon Codes - Pre-Retirement Sale starts May 1

Buy3Get10 (buy 3 items get 10% off)

Buy100Get15 (buy$100 get 15% off)

Buy500Get20 (buy $500 get 20% off)

Buy1000Get30 (Buy $1000 Get 30% off)