Mortar and pestle, agate

Agate is the preferred material for mortars and pestles for laboratory use. It is harder than glass and porcelain and has a very fine grain structure, so a previous grinding product can be cleaned out with ease to reduce cross-contamination.
Do not use agate with liquid nitrogen as it is liable to crack.
Sterilise with alcohol or other chemical, heat could damage the mortar.
Because of their natural origin, the agate mortars and pestles may vary slightly in appearance from the picture.

Physical properties of agate
Chemical composition: 99.9% Si02, which makes it a quartz species, with trace contaminants alumina and iron oxide common
Class: Tectosilicate
Crystal system: Hexagonal-R; 32 (trigonal-trapezohedral)
Crystal habit: Usually as banded or layered botryoidal masses with microfibrous structure
Zoning: Colour banding and layers of inclusions are common
Specific gravity: 2.57 - 2.64
Mohs hardness: 6.5 - 7
Index of refraction: 1.53 - 1.55
Birefringence: Weak, 0.005 to 0.009

Code Title OD x ID x H Depth Pack Size Availability Price Updated: 21-10-2021
HG20-060 Mortar and pestle, agate 60 x 50 x 24mm 12mm each 1 in stock AU $112.00
HG20-080 Mortar and pestle, agate 80 x 60 x 29mm 16mm each 1 in stock AU $108.00
HG20-090 Mortar and pestle, agate 90 x 70 x 31mm 20mm each 1 in stock AU $133.00
HG20-110 Mortar and pestle, agate 110 x 90 x 36mm 26mm each 1 in stock AU $211.00
HG20-130 Mortar and pestle, agate 130 x 110 x 45mm 42mm each 4 weeks AU $311.00
HG20-150 Mortar and pestle, agate 150 x 130 x 55mm 40mm each 4 weeks AU $418.00
Code Title OD x ID x H Depth Pack Size Availability Price
HG20-060 Mortar and pestle, agate 60 x 50 x 24mm 12mm each Only 1 AU $112.00
HG20-080 Mortar and pestle, agate 80 x 60 x 29mm 16mm each Only 1 AU $108.00
HG20-090 Mortar and pestle, agate 90 x 70 x 31mm 20mm each Only 1 AU $133.00
HG20-110 Mortar and pestle, agate 110 x 90 x 36mm 26mm each Only 1 AU $211.00
HG20-130 Mortar and pestle, agate 130 x 110 x 45mm 42mm each 4 weeks AU $311.00
HG20-150 Mortar and pestle, agate 150 x 130 x 55mm 40mm each 4 weeks AU $418.00