Reviews
1.8" Goethite After Siderite Crystals on Feldspar and Schorl - Namibia
This is a gorgeous mineral specimen featuring several brown goethite (after siderite) crystals on a mixture of feldspar and black tourmaline, collected from the Erongo Mountains in Namibia. The underside of this specimen contains an aquamarine crystal
The entire specimen is 1.8" wide and is accompanied by an acrylic display base with mineral tack.
The entire specimen is 1.8" wide and is accompanied by an acrylic display base with mineral tack.
Schorl, also known as "black tourmaline" or "black schorl", is a black form of tourmaline that often occurs as lustrous prismatic crystals. The crystals can be stubby or elongated and typically feature lengthwise striations. Many schorl crystals have flattened pyramidal terminations. They can also form in radiating, columnar, and stalactitic aggregations, as well as small, needle-like inclusions within quartz (tourmalinated quartz) and in massive form.
Schorl is a basic sodium iron aluminum boro-silicate with the generic chemical formula NaFe2 + 3Al6(BO3)3Si6O18(OH)4 . It has been used for everything from jewelry to piezoelectric guitar pickups.
Schorl is a basic sodium iron aluminum boro-silicate with the generic chemical formula NaFe2 + 3Al6(BO3)3Si6O18(OH)4 . It has been used for everything from jewelry to piezoelectric guitar pickups.
$25
SPECIES
Goethite, Feldspar & Tourmaline var. Schorl
LOCATION
Erongo Mountains, Karibib, Erongo Region, Namibia
SIZE
1.8 x 1.3"
CATEGORY
ITEM
#348775
