Created by Glazy Admin 2015-07-16 06:59:40, updated 2015-08-09 17:47:04

Parent: None

Type: Feldspar

Weight: 0.0000
Formula Weight: 0.0000
LOI: 0.0000
Thermal Expansion: 0.0000
Oxide SiO2 Al2O3 MgO CaO K2O Na2O P2O5 Fe2O3 TiO2
% Analysis 72.51 11.55 0.07 0.68 7.84 1.79 0.10 1.20 0.54
Formula 9.580 0.899 0.014 0.096 0.661 0.229 0.006 0.060 0.054

Volcanic ash (Great Plains) supplies SiO2, Al2O3, K2O, Na2O,
CaO, MgO, Fe2O3, TiO2, and P2O5.
Aluminosilicate glass of volcanic origin, deposited during the
Pleistocene era from eruptions of the Valles Mountain in New
Mexico. Found throughout the Great Plains region of the U.S.
Similar in composition to Cornwall Stone.
Analyses:
Obstler: (Ceramic Industry, 1993, 113)
% 1.79 Na2O 7.84 K2O 0.07 MgO 0.68 CaO 11.55 Al2O3
72.51 SiO2 0.10 P2O5 0.54 TiO2 1.20 Fe2O3
Conrad: (Kansas volcanic ash)
% 1.79 Na2O 7.84 K2O 0.07 MgO 0.68 CaO 11.55 Al2O3
72.51 SiO2 0.54 TiO2 1.21 Fe2O3

Hazards

09/2016 Note: This is a new feature. If there is no safety information below, then that material's data has not yet been added. Some materials only have GHS ratings, while others only have HMIS ratings. Warnings differ between systems and countries. Glazy does not take any responsibility for accuracy of linked SDS information. Contact your ceramics supplier for safety information for your specific materials.

This material's safety information has not yet been added to Glazy.

Recipes using this material

Name Amount of Volcanic ash - Great Plains Temp. Atmospheres Surface Transparency Si:Al R20:RO Author
Barnard Blast 48.7 Δ6 Oxidation
Semi-glossy Semi-opaque 10.89 0.3 : 0.7 Ginger Lukas
rocky mountain cream ash 40 Δ10 - 12 Reduction
Semi-matte Opaque 4.65 0.13 : 0.87 chance taylor
Pumice Celadon 80 Δ10 Reduction
Glossy Transparent 12.48 0.34 : 0.66 John Britt