Red quartz cluster, two-in one specimen
Red quartz cluster, two-in one specimen
Locale: Morocco
Approx dimensions: 2 x 2 x 2", longest crystal 3.8 cm
Approx weight: 299g
Also known as hematite or ferruginous (iron-bearing) quartz, this unusual red quartz cluster gets its color from oxidized hematite. Hematite can manifest in multiple ways: as a color-causing agent in the quartz creating tones of red, orange, black, and brown; growing small red or black spots inside the quartz; or growing as a matte layer on the surface of the quartz.
This quartz initially was colorless, but a change occurred during the growth process that introduced hematite inclusions, making the newer growth orange-red. Broken crystals along the edge reveal a colorless interior with by a layer of red-tinted quartz under the surface.
Both sides of this specimen are intriguing and display different types of quartz growth. One side features an excellent cathedral growth form with a light phantom effect of the hematite layer visible under the surface of the quartz. A large tabular quartz running horizontally separates the two sides. The other side is coated in glittering hematite-included quartz druzy polka-dotted with black hematite spots.