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Scainiite

Named for engineer and investigator of systematic and Italian mineralogy, Dr. Giuseppe Scaini. Scainiite appears as opaque black acicular crystals with a bluish metallic luster and a dark red tint. It can be found as crystals in its type locality at the Buca della Vena mine in Tuscany, Italy, and as very rich specimens in association with zinkenite from an antimony-gold ore at Dubrava in Slovakia.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)

IMA/CNMNC List of Mineral Names (2009) and European Journal of Mineralogy 11 (1999), 949

Scapolite

Named for the Greek words skapos, meaning “digger,” and lithos, meaning “stone.”Scapolite is one of the transitional members of the Marialite-Meionite series, and the term will generally be used to refer to the series, not the Scapolite Group. It appears as colorless to pale yellow, yellow, brown, violet, pink, etc., prismatic crystals, or as granular or massive. Scapolite will fluoresce yellow to orange under both short-wave and long-wave ultraviolet light. Scapolite is “a characteristic mineral, formed during regional metamorphism, under conditions of the almandine amphibolites metamorphic facies and of the granulite facies,” as well as during regional and contact metamorphism that is connected to metasomatism. It can be found in pegmatites cutting serpentinite, marble, or skarn, hybrid pegmatite-like rock, skarn, calc-silicate hornfelses, metamorphic marble, and in altered gabbro and nepheline syenite. There are hundreds of widespread, worldwide localities for Scapolite.

Ref. Minerals and their Localities, Bernard, J.H. and Hyršl, J. (2004)

IMA/CNMNC List of Mineral Names (2009) and American Mineralogist 81 (1996), 169

Scawtite

Named for the first noted occurrence of the mineral and its type locality at Scawt Hill in Ireland. Found in only a few localities including, additionally, Germany, the USA, Japan, and New Zealand. Occurs as a late-stage mineral in hydrothermal veins within skarns that formed as  a result of contact metamorphism in limestone.

Ref. Handbook of Mineralogy, Anthony et al (1995) and MSA at http://www.handbookofmineralogy.org/pdfs/scawtite.pdf

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