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Amblygonite

Description: Lithium alumino-fluophosphate

Oxide Analysis Formula
Li2O 10.10% 0.50
Al2O3 24.50% 0.35
P2O5 48.00% 0.50
LOI 17.40%n/a
Oxide Weight 121.97
Formula Weight 147.67

Notes

This material requires oxidation if used as a glaze material to minimize blisters due to products of decomposition.
From Watkins Minerals in Wichita Falls, TX.

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Materials Petalite
Materials Spodumene
Spodumene is a lithium sourcing feldspar, an alternative to lithium carbonate to supply Li2O to ceramic glazes. Contains up to about 8% Li2O.
Materials Lepidolite
Typecodes Flux Source
Materials that source Na2O, K2O, Li2O, CaO, MgO and other fluxes but are not feldspars or frits. Remember that materials can be flux sources but also perform many other roles. For example, talc is a flux in high temperature glazes, but a matting agent in low temperatures ones. It can also be a flux, a filler and an expansion increaser in bodies.
Minerals Amblygonite
A fluorophosphate mineral.

Data

Hardness (Moh) 6.0
Frit Softening Point 1100C D
Density (Specific Gravity) 3.00
By Tony Hansen
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