It often forms as transparent to translucent crystals with a glassy luster

Dimensions: 108x76

Shape: Oblong

Due to these facts

Gyrolite with Calcite on Quartz Matrix | 240 gr | Dindoshi, India Gyrolite It often forms as transparentGyrolite often forms nodular aggregates that can appear glassy, dull or even fibrous. The aggregate nodules often accompany many fine and rare minerals such as Apophyllite and Okenite plus many of the Zeolites. Calcite is found throughout the world in sedimentary, metamorphic, and igneous rocks. Some geologists consider it to be a "ubiquitous mineral" one that is found everywhere. Calcite is the principal constituent of limestone and marble. Name: