Satin spar is an adjective used when the fibrous habit of a mineral gives it a satin luster.The term satin spar has been used in the past to describe calcite and aragonite, however, it is currently accepted as one variety of the mineral gypsum, along with selenite and alabaster.In addition to its ornamental uses, gypsum is also a primary component in plaster and other building materials.
Satin Spar Classification
||Satin Spar |
Satin Spar Optical Properties
||SWUV: Inert to weak brownish to greenish white |
LWUV: Inert to weak brownish to greenish white
Satin Spar Characteristic Physical properties
||Satin spar is a white to cream fibrous gypsum with chatoyant effect. |