Amphibolite,mostly amphibole minor plagioclase

10 Pack [R2002], 
.5KG [R2001], 
Large Size [R2003], 
Test Chips [R2001C]

Coal, (Anthracite) classic material

10 Pack [R2005], 
.5KG [R2004], 
Large Size [R2006], 
Test Chips [R2004C]

Gneiss, Fine Banded layers of pink feldspar and biotite mica

10 Pack [R2073], 
.5KG [R2074], 
Large Size [R2075], 
Test Chips [R2074C]

Gneiss, pink,cream and black coarse-grained, banded

10 Pack [R2008], 
.5KG [R2007], 
Large Size [R2009], 
Test Chips [R2007C]

Gneiss, granitoid

10 Pack [R2011], 
.5KG [R2068], 
Large Size [R2069], 
Test Chips [R2068C]

Hornfels, black, fine-grained

10 Pack [R2014], 
.5KG [R2013], 
Large Size [R2012], 
Test Chips [R2013C]

Marble, pink

10 Pack [R2017], 
.5KG [R2019], 
Large Size [R2018], 
Test Chips [R2019C]

Marble, white, coarse-grained

10 Pack [R2020], 
.5KG [R2022], 
Large Size [R2021], 
Test Chips [R2022C]

Marble, white to gray, fine-grained

10 Pack [R2023], 
.5KG [R2028], 
Large Size [R2029], 
Test Chips [R2028C]

Phyllite, gray-green, fine texture

10 Pack [R2026], 
.5KG [R2025], 
Large Size [R2027], 
Test Chips [R2025C]

Quartzite, blue-gray, fine grained

10 Pack [R2031], 
.5KG [R2030], 
Large Size [R2032], 
Test Chips [R2030C]

Quartzite gray to white

10 Pack [R2034], 
.5KG [R2033], 
Large Size [R2035], 
Test Chips [R2033C]

Quartzite, pink

10 Pack [R2036], 
.5KG [R2070],
Large Size [R2071], 
Test Chips [R2033C]

Schist (Chlorite), dark green, fine grained chlorite schist

10 Pack [R2040], 
.5KG [R2039], 
Large Size [R2038], 
Test Chips [R2039C]

Schist (Garnet), small individual garnet crystals in a fine grained mica schist

10 Pack [R2042], 
.5KG [R2041], 
Large Size [R2043], 
Test Chips [R2041C]

Schist (Graphite), fine-grained, black graphite schist

10 Pack [R2045], 
.5KG [R2044],
Large Size [R2046], 
Test Chips [R2044C]

Schist (Mica, Muscovite), fine-grained, platy muscovite mica schist

10 Pack [R2048], 
.5KG [R2047], 
Large Size [R2049], 
Test Chips [R2047C]

Schist (Mica), White to green 

10 Pack [R2051], 
.5KG [R2050], 
Large Size [R2052], 
Test Chips [R2050C]

Schist, (Sillimanite) lenses of white Sillimanite in a biotite mica schist

10 Pack [R2084] 
.5KG [R2083], 
Large Size [R2085]
Test Chips [R2083C]

Schist (Staurolite), twinned staurolite crystals in mica schist

10 Pack [R2054], 
.5KG [R2053], 
Large Size [R2072], 
Test Chips [R2053C]

Schist (Tourmaline), black touramile crystals in mica schist

10 Pack [R2057], 
.5KG [R2055], 
Large Size [R2056], 
Test Chips [R2055C]

Slate, black to gray

10 Pack [R2060], 
.5KG [R2059], 
Large Size [R2061], 
Test Chips [R2059C]

Slate, green

10 Pack [R2065], 
.5KG [R2066], 
Large Size [R2067], 
Test Chips [R2066C]

Slate, red

10 Pack [R2062], 
.5KG [R2063], 
Large Size [R2064], 
Test Chips [R2063C]