Mohs Hardness Test Pen with Natural Inlaid Diamond Tip sales 四川金口河产出扇形透明水晶晶簇，六方主晶完整，柱面分布热液阶梯生长纹。修长晶体错落发散生长，棱边遍布细小次生水晶。晶体通透、玻璃光泽浓郁，裂隙在光照下折射出彩虹光晕。

四川金口河产出扇形透明水晶晶簇，六方主晶完整，柱面分布热液阶梯生长纹。修长晶体错落发散生长，棱边遍布细小次生水晶。晶体通透、玻璃光泽浓郁，裂隙在光照下折射出彩虹光晕。

双头方解石标本，产自缅甸。晶体双端尖棱，白黄自然相间，晶面布满细碎金黄矿斑；基底密布细粒白水晶，晶形完整、棱角利落，多矿物共生，品相完好。

From Boyacá Department

9 single crystals on panel

historically sourced from Namibia but found elsewhere

Mohs Hardness Test Pen with Natural Inlaid Diamond Tip sales 四川金口河产出扇形透明水晶晶簇，六方主晶完整，柱面分布热液阶梯生长纹。修长晶体错落发散生长，棱边遍布细小次生水晶。晶体通透、玻璃光泽浓郁，裂隙在光照下折射出彩虹光晕。Mohs Hardness Test Pen with Natural Inlaid Diamond Tip This Mohs hardness testing pen is fitted with a natural industrial diamond tip originating from the counterpart support Xinjiang diamond industrial project in Changde City, Hunan Province, China. The diamond tip is fixed via brass cold mounting technology. The outer barrel is constructed from stainless steel. The total weight is 47 gramswith physical dimensions of 9. 5cm 1. 3cm 0. 9cm. 479. 5cm1.