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Gypsum

LAVA Gypsum: Reliable Quality for Industrial Applications
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LAVA Gypsum: Reliable Quality for Industrial Applications

LAVA gypsum is mined in Altsi, Sitia, Crete, in 3 grades:

a. High content of gypsum (CaSO4.2H2O) >70%
b. High content of anhydride (CaSO4) >70%
c. Mixture of gypsum (<40%) and anhydride (>50%)

Key features

The LAVA gypsum is a distinct industrial mineral with high-quality characteristics.

01

HIGH PURITY

Chemistry

GYPSUM (CaSO4.2H2O)

SiO2

<1%

Al2O3

<0.3%

Fe2O3

<0.1%

CaO

32-39%

MgO

1-3%

SO3

36-50%

K2O

traces

Νa2O

traces
TiO2

traces

Cryst. H2O
15-18

LOI (Loss on Ignition)

20-25
Insoluble Residue (ASTM)
1%
Gypsum (CaSO4.2H2O)
70-90
Anhydrite (CaSO4)
max. 20
Moisture (%)
<2
Purity
>90%

ANHYDRIDE (CASO4)

SiO2

<1%

Al2O3

<0.2%

Fe2O3

<0.1%

CaO

36-38%

MgO

<1%

SO3

50-53%

K2O

traces

Νa2O

traces
TiO2

traces

Cryst. H2O
<1%

LOI (Loss on Ignition)

5-10%
Insoluble Residue (ASTM)
1%
Gypsum (CaSO4.2H2O)
<5%
Anhydrite (CaSO4)
>85%
Moisture (%)

<1

Purity
>90%

MIXTURE OF GYPSUM (<40%) AND ANHYDRIDE (>50%)

SiO2

<1%

Al2O3

<0.25%

Fe2O3

<0.1%

CaO

32-39%

MgO

0.3-2.70%

SO3

41-51%

K2O

traces

Νa2O

traces
TiO2

traces

Cryst. H2O
5-18%

LOI (Loss on Ignition)

11-22%
Insoluble Residue (ASTM)
1%
Gypsum (CaSO4.2H2O)
<40%
Anhydrite (CaSO4)
>50%
Moisture (%)
1-2
Purity
>90%

Applications

LAVA gypsum serves a pivotal purpose in various industries like cement, fertilizer, and building materials. It stands out as a key ingredient, notably enhancing the strength and workability of cement, making it among the most frequently employed materials in cement production.
Gypsum Applications

Other LAVA products

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Contact Details

Dionysiou Solomou 32 Lykovrisi 14123 Athens - Greece

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