gems, jade, maw sit sit, sannan skarn

A new deposit of complex fine-grained green rocks was found in Western Pakistan. The material is characterised by its more or less green colour, due to chrome. The mineralogical components vary strongly in short distances and the minerals identified (hydrogrossular, diopside, aegirine, winchite, pectolite, chlorite, natrolite, sodalite etc.) are not well known to gemmologists. A common term to name the material is skarn, as it describes a rock formed by metasomatic or contact metamorphic processes. Sannan is a specific modifier that describes the skarn from the new occurrence.