Lan Hua Stone
Lan Hua Stone, is a natural ultra-hard material. It is dates back approximately 248 million years. Certified by the National Jewelry Association as a calcium-silicate hornfels jade, it is classified as an opaque jade variety.
About Us
LAN HUA INDUSTRIAL GROUP LIMITED is Leveraging its high hardness, corrosion resistance, rust resistance, bending resistance,and high load-bearing capacity, the developed Stone Roller solves the industry pain point of short service life of traditional metal rollers in high-dust and high-corrosion environments. Itprovides a new solution for the belt conveyor industry.
Material Properties
Mohs Hardness: 7.2–7.8 (diamond = 10) , High hardness, excellent wear resistance, acid and alkali resistance, corrosion resistance, and high- temperature stability , Self-lubricating with low adhesion, High flexural, compressive, and shear strength: low water absorption ， Radioactivity meets Class A standard (tested by accredited institutions), allowing unrestricted use in all applications With proven reserves of 170 million cubic meters, Lan Hua Stone offers significant potential for large-scale market development.
Key Properties of Lan Hua Stone
Mohs Hardness 7.2~7.8
SiO2 67.82% A1203 12.41%
Acid Resistance 99.02% Alkali Resistance 99.93%
Water Absorption 0.05%
Compressive Strength （MPa） 294 Bending Strength （MPa） 18.5
