• Petalite / Lithium Aluminum Tectosilicate Synonyms:
  
  Petalite, LiAlSi₄O₁₀, lithium aluminum tectosilicate mineral, Petalita, Castorite, Petalit, Lithite, Lithita, CAS# 1302-66-5,
  

• Petalite / Lithium Aluminum Tectosilicate Formula: 
  
  LiAlSi₄O₁₀

• Petalite / Lithium Aluminum Tectosilicate Description:

Rare, light and fragile with tabular or columnar crystals. A monoclinic mineral with a framework silicate structure. Its color is creamy to white and sometimes to more rarely pinkish. It has a thermal expansion coefficient lower than almost any other inorganic or organic filler. It is found in granite pegmatites, locally constituting an ore of lithium.

• Petalite / Lithium Aluminum Tectosilicate Typical Chemical Properties Available:

a) Option A: SiO2= 77%, Al2O3= 17.5%, and Li2O= 4.5%

b) Option B: SiO2= 47.2%,Al2O3 = 38.8% and Li2O= 11.8% and Other alkalis= 0.5%

• Petalite / Lithium Aluminum Tectosilicate Typical Physical Properties Available:

Sintered pieces, targets, and powder

• Petalite / Lithium Aluminum Tectosilicate Nominal Physical Constants:

Luminescence	fluorescent
Thermal Stability (up to deg.F)	2300
Typical Density (g/cm3)	2.39- 2.46
Melting Point (°C)	1400
pH	7.5- 10.5
Empirical Formula	LiAlSi4O10
Color	grey / yellow
Mohs Hardness @20°C	6.0- 6.5
Luster	vitreous - pearly
Specific Gravity
Thermal Expansion Coefficient (20 deg.-100 deg.C)	-0.3 to 0.5
Crystallography	monoclinic
Molecular Weight (gm)	305.15
Mohs Hardness	6.0 to 6.5

• Petalite / Lithium Aluminum Tectosilicate Typical Applications:

a) An important ore of lithium. It is used as a lithium addition glasses and porcelain enamels.

b) It is converted to spodumene and silica by roasting.

c) The colorless varieties are often used as gemstones.

• Petalite / Lithium Aluminum Tectosilicate Typical Packaging:

50 lbs. bags, poly-lined fiber drums and bulk bags

• Petalite / Lithium Aluminum Tectosilicate TSCA (SARA Title III) Status:

a) Listed

• Petalite / Lithium Aluminum Tectosilicate CAS Number:

CAS# 1302-66-5

• Petalite / Lithium Aluminum Tectosilicate RTECS Number:

OJ5580000