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Silicates, borates and other salts

Almandine

Also known as Almandine (Al2Fe3(SiO4)3), Almandite, dialuminum, iron(2+), trisilicate

CAS 1302-62-1Formula Al2Fe3O12Si3Molar mass 497.75 g/mol
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Almandine chemical structure, Al2Fe3O12Si3, CAS 1302-62-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
1302-62-1
Formula
Al2Fe3O12Si3
Molar mass
497.75 g/mol
HS code
284210
Category
Silicates, borates and other salts

What is Almandine?

Plain description, key identifiers and synonyms

Almandine is a chemical substance with the molecular formula Al2Fe3O12Si3 and a molar mass of 497.75 g/mol. Its CAS registry number is 1302-62-1. The IUPAC name is dialuminum, tris(iron(2+)), trisilicate.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
dialuminum, tris(iron(2+)), trisilicate
CAS number
1302-62-1
Molecular formula
Al2Fe3O12Si3
INCI name
GARNET POWDER
InChIKey
BMCKDMWHMMLJSF-UHFFFAOYSA-N
InChI
InChI=1S/2Al.3Fe.3O4Si/c;;;;;3*1-5(2,3)4/q2*+3;3*+2;3*-4
SMILES (canonical and isomeric)
[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-].[Al+3].[Al+3].[Fe+2].[Fe+2].[Fe+2]

Synonyms

  • Almandine (Al2Fe3(SiO4)3)
  • Almandite
  • dialuminum, iron(2+), trisilicate
  • Al2Fe3O12Si3
  • dialuminum, triferrous, trisilicate

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
497.75 g/molcalc.
Exact mass
497.6376 Dacalc.
LogP (octanol/water)
-16.18calc.
Topological polar surface area
276.7 Ųcalc.
Hydrogen bond donors
0calc.
Hydrogen bond acceptors
12calc.
Rotatable bonds
0calc.
Heavy atoms
20calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0calc.
Formal charge
0calc.
Stereocentres
0calc.
Components
8calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Almandine suppliers

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Almandine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name GARNET POWDER(abrasive)

Functional uses

  • Abrasive
  • Filler

Cosmetic functions

  • Abrasive

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Almandine is traded under.

HS 2842.10Indicative HS code

Double or complex silicates, including aluminosilicates whether or not chemically defined

World exports in 2024
$929M
−10.0% vs 2023, imports $944M
2019 to 2024
Top exporters
  1. Netherlands25.3%
  2. Germany24.4%
  3. Japan11.3%
Top importers
  1. United States15.2%
  2. Germany14.1%
  3. Netherlands13.5%
Reported customs values in USD, not prices.Full trade data

The HS code shown for Almandine is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Almandine, based on the data on this page

What is Almandine?

Almandine is a chemical substance with the molecular formula Al2Fe3O12Si3 and a molar mass of 497.75 g/mol. Its CAS registry number is 1302-62-1. The IUPAC name is dialuminum, tris(iron(2+)), trisilicate.

What is the CAS number of Almandine?

The CAS registry number of Almandine is 1302-62-1.

What is the molecular formula and weight of Almandine?

The molecular formula of Almandine is Al2Fe3O12Si3 and its molar mass is 497.75 g/mol.

What is Almandine used for?

Known uses and roles of Almandine include fillers and thixotropes in adhesives and sealants, builders and chelants in home care and cleaning, abrasive and filler.

Is Almandine hazardous?

No GHS hazard classification for Almandine is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Almandine?

Almandine is usually classified under HS code 284210 (Double or complex silicates, including aluminosilicates whether or not chemically defined). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Almandine?

Post a free request on CompoundList and suppliers of Almandine will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Almandine?

Suppliers quote Almandine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Almandine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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