2.75" Specularite Slab TF1927 vivianite Species: Clymena

Species: Clymena

or black threads within the quartz

Scoria forms as part of a lava flow usually near the surface of the flow

Malachite Lion Carving

which is the result of internal diffraction of light within the opal's microstructure

2.75" Specularite Slab TF1927 vivianite Species: Clymena2. 75" Specularite Slab Approx. Dimensions: 2. 75x2. 75x0. 25 inches Approx. Weight: 176 grams Locality: Upper Peninsula, Michigan Acrylic slab stand is included! Specularite is a variety of hematite characterized by its shiny, reflective surfaces, often resembling polished metal. It typically forms as tabular or platy crystals and occurs in metallic gray to black colors. Specularite derives its name from the Latin word "speculum," meaning mirror, due