Specimen #1875

Name: Quartz (Angle-plated Cast)

Type: Mineral

Locality: Travelers Rest, Greenville, Pickens and Oconee Counties, South Carolina, USA

Favorite? N

Fluorescent? N

Size: 11.3 x 7.6 x 1.3 cm

Weight:

Acquired: 2010-02-22

Source: Arkenstone: Rob Lavinsky

Label: N

Comment: An unusual specimen of a style I have not seen since the 1980s, this is so-called "angle-plated quartz" in which the quartz has filled seams and preserved the gaps between some other mineral species' crystals. It is a weird thing, in person, and I cannot recall anybody ever giving me a solid explanation of how these form beyond guesses as to what mineral replacement or mineral cavity they were filling. This is an excellent specimen with dramatic form, and good size, and clean stark white color. It has a sugary sparkle to it from a coating of microcrystallized quartz atop the larger gridwork.

Minerals: Quartz (SiO₂)

There is one picture on file

M01875-01.jpg: