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1.4" Rare Bright Yellow Humboldtine on Matrix - Montana
This is a 1.4" wide specimen featuring a crusty aggregation of rare, vibrant yellow humboldtine on matrix. It was collected from the Colorado Gulch deposits in Lewis and Clark County, Montana
Comes with an acrylic display case and mineral tack.
Comes with an acrylic display case and mineral tack.
About Humboldtine
Humboldtine is a rarely occurring mineral from the mineral class of "organic compounds". It crystallizes in the monoclinic crystal system, but only rarely develops well-formed, tabular to prismatic crystals with a resin-like sheen on the surfaces. It is mostly found in the form of botryoidal or fibrous to earthy aggregates and crusty coatings from dull yellow to brownish yellow or amber yellow in color. It can also be transparent to opaque.
With a Mohs hardness of 1.5 to 2, humboldtine is one of the softest minerals and can be scratched with a fingernail.
General Chemical Formula - FeC2O4·2H2O
Humboldtine is a rarely occurring mineral from the mineral class of "organic compounds". It crystallizes in the monoclinic crystal system, but only rarely develops well-formed, tabular to prismatic crystals with a resin-like sheen on the surfaces. It is mostly found in the form of botryoidal or fibrous to earthy aggregates and crusty coatings from dull yellow to brownish yellow or amber yellow in color. It can also be transparent to opaque.
With a Mohs hardness of 1.5 to 2, humboldtine is one of the softest minerals and can be scratched with a fingernail.
General Chemical Formula - FeC2O4·2H2O
$49
SPECIES
Humboldtine
LOCATION
Colorado Gulch, Helena, Lewis and Clark County, Montana
SIZE
1.4" wide
CATEGORY
ITEM
#317258
