CY2305 Calcium Carbonate (CaCO3) Crystal Substrates

Catalog No. CY2305
Size 20x20x0.5mm, 10x10x0.5mm, 5x5x0.5mm
Material CaCO3
Orientation <100>, <001> ±0.5º

SAM strictly selects natural growing calcium carbonate raw materials to provide calcium carbonate crystals with high quality and competitive prices.

Related products: KTaO3 Crystal Substrates, LSAT Crystal Substrates, LiF Crystal Substrates, Gallium Antimonide Single Crystal Substrate.

Description of Calcium Carbonate (CaCO3) Crystal Substrates

Calcium carbonate (CaCO3) is a non-uniaxial crystal with large birefringence and a wide spectral range. CaCO3 crystals are suitable for visible and near-infrared polarizing materials. CaCO3 is a mineral crystal with high birefringence and polarization characteristics. It is mainly used in the defense industry and high-precision optical instruments and has important applications in high-end radio and astrophysics.

calcium carbonate

Specifications of Calcium Carbonate (CaCO3) Crystal Substrates


CaCO3 substrate

Crystal Structure 

Trigonal system

Lattice constant

a= 4.989 c= 17.062

Melting point

1339 °C


2.71 g/cm3

Thermal Conductivity

4.646 W/m·K for 273 K

Thermal expansion coefficient

aa = 24.39 x10-6/K;       ac = 5.68 x10-6/K

Non-uniaxial: no=na=nb , ne=nc

Refractive index

no = 1.6557,     ne = 1.4852,    Dh = -0.1705,   

r = 6.20°    at 0.63 um

no = 1.6629,     ne = 1.4885,    Dh = -0.1744,   

r = 6.32°    at 1.30 um


(wavelength mm)

no2= 2.69705 + 0.0192064/( λ 2 –0.01820) – 0.0151624  λ 2

ne2 = 2.18438 + 0.0087309/( λ 2 –0.01018) – 0.0024411  λ 2

Beam deviation

< 3 arc min

Transmitting wavefront distortion

< l/2 @ 632.8 nm

Transmission range

350nm - 2300nm


 <100>, <001> ±0.5º

Standard Size

50x50x30mm, 1”x1”x1.0mm, 10x10x0.5mm, 5x5x0.5mm


Fine ground, One side polished or Two sides polished

Surface Roughness(Ra) < 5A


Applications of Calcium Carbonate (CaCO3) Crystal Substrates

- Mainly used in the defense industry and high-precision optical instruments


CY2538 Bismuth Telluride (Bi2Te3) Single Crystal Substrates

CY2538 Bismuth Telluride (Bi2Te3) Single Crystal Substrates

sc/1616637186-normal-Sapphire Carrier Plate for GaAs Wafers.jpg

CY3257 Sapphire Carrier Plate for GaAs Wafers

sc/1619594759-normal-Neodymium Gallate Single Crystal Substrate.jpg

CY3343 Neodymium Gallate Single Crystal Substrate

sc/1619597098-normal-LaSrAlO4 Single Crystal Substrate.jpg

CY3344 LaSrAlO4 Single Crystal Substrate

sc/1619597570-normal-Strontium Titanate Single Crystal Substrate.jpg

CY3345 Strontium Titanate Single Crystal Substrate, SrTiO3


CY3347 CdTe Single Crystal Substrate

sc/1619599021-normal-Terbium Dysprosium Ferroalloy GMM.jpg

CY3348 Terbium Dysprosium Ferroalloy GMM


CY3435 AlN Single Crystal Substrate


Please fill in your details and one of our material experts will get back to you within 24 hours. For more information, contact us via E-mail at

** Email address with your company's domain name is preferred. Otherwise, we may not be able to process your inquiry.