Products
Gypsum
LAVA Gypsum: Reliable Quality for Industrial Applications
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.
