BH250-111

Title

BH250-111

Subject

Sillimanite Garnet Gneiss

Description

Major Minerals: garnet, biotite, albite, quartz
Minor Minerals: zircon, graphite

Optics: pleochroic halo in biotite, pre-kinematic granets

Creator

Bereket Haileab

Source

From the rock collection of Bereket Haileab. Sample BH250-111. Housed at Carleton College in Minnesota.

Type

Thin section and hand sample

Relation


View on ArcGIS Online here





















Collection

Metamorphic Rocks

Citation

Bereket Haileab, “BH250-111,” BH250 Mineralogy Teaching Collection, accessed April 26, 2026, https://bereket-haileab.geology.sites.carleton.edu/items/show/130.

Output Formats