Calcite

(

CaCO3

)
Eigenschaften 
Transmission Range

0.21 - 5.2 (thickness 1mm) µm

Refractive Index

no = 1.656 @633 nm $$ ne = 1.485 @633 nm

Density  

2.711 g/cm3 @25°C

Melting point  

diss.> 700°C

Molecular Weight 

100.9

Thermal Conductivity  

||C 5.526 W/m·K for 273 K $$ ⊥C 4.646 W/m·K for 273 K

Spec. Heat Capacity  

822 J/K·kg 

Thermal Expansion  

||C 25·10-6 $$ ⊥C -5.8·10-6

Hardness (Mohs) 

135 K (kg/mm²)

Young's Modulus 

||C72.35 GPa$$ ⊥C 88.19 GPa

Shear Modulus 

32 GPa

Bulk Modulus  

129.6 GPa

Elastic Coefficient 

C11= 144 GPa; C12= 53.9 GPa; C14= 20.5 GPa$$C13= 51.1 GPa; C33= 84 GPa; C44= 33.5 GPa

Dielectric Constant

||C 8 for 104 Hz at 293 K$$ ⊥C 8.5 for 104 Hz at 293 K  

Solubility in Water 

1.4 · 10-3 g/100g @20°C

Crystal Structure  

Single crystal, synthetic or natural  

Crystal Type  

hexagonal$$a= 4.989 Å  c= 17.062 Å

Cleavage Planes 

(1011)

Poisson Ratio  

0.31

Application  

polarizing optics

Remarkable 
  • Also known as Iceland spar
  • Optics are mostly made from naturally mined crystals, therefore the material has to be carefully selected
  • strongly birefringent
  • Application as a polarizer or retardation plate
  • Visually negative
  • Cleaves easily along the {1014} surfaces and produces a characteristic cleaved rhombus
NOTE: Despite careful research, we do not accept any liability for the correctness of the information provided. Liability claims based on the use of the information are excluded in principle.

Calcite: Korth Kristalle - Vom Rohkristall zur hochpräzisen Optik. Durchblick für alle Wellenlängen - Seit 72 Jahren züchten wir Kristalle und fertigen daraus hochpräzise optische Komponenten für alle Wellenlängen vom IR- bis zum VUV-Bereich. Unsere Produkte kommen in allen Bereichen zum Einsatz, in denen eine hochentwickelte, präzise technische Ausstattung unerlässlich ist – von der Analytik bis hin zur Medizin- und Raumfahrttechnik.

Contact/Inquiry

Korth Kristalle

Am Jägersberg 3
24161 Altenholz

+49 (0)431 - 36 90 50
+49 (0)431 - 36 90 525

info@korth.de


Contact

Remarkable

  • Also known as Iceland spar
  • Optics are mostly made from naturally mined crystals, therefore the material has to be carefully selected
  • strongly birefringent
  • Application as a polarizer or retardation plate
  • Visually negative
  • Cleaves easily along the {1014} surfaces and produces a characteristic cleaved rhombus