Sincosite

Sincosite is a green mineral discovered in 1922. It is named for Sincos, Daniel Alcides Carrión Province, Peru, where it was first discovered.^[2]

Sincosite
Sincosite with an associated spray of white, acicular minyulite; from Ross Hannibal Mine, South Dakota, US
General
Category	Vanadate minerals
Formula	CaV2(PO4)2O2 . 5H2O
IMA symbol	Scs[1]
Strunz classification	8.CJ.65
Crystal system	Tetragonal
Crystal class	Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m)
Space group	P42/nnm
Identification
Tenacity	Brittle
Mohs scale hardness	1 - 2
Luster	Vitreous, Pearly, Sub-Metallic, Dull
References	[2]