Multi-phase inclusions in Colombian emerald igtlj.com

Multi-phase inclusions in Colombian emerald

A complex pattern of phase inclusions where each cavity consists of perfectly formed multiple cubic crystals. These inclusions are oriented along the basal plane. Note the number of such cavities or phase-units. Image width 5.08 mm; bright-field illumination with shadowing research by gagan chodary gem testing laboratory jaipur  igtlj.com   gem-passion.com

Spinel-Carbonate Crystal in Sapphire IGTLJ.COM LOGIN

Spinel-Carbonate Crystal in Sapphire

This octahedral colourless crystal is a spinel, associated with a carbonate mineral (possibly calcite) in a yellow sapphire from Sri Lanka. Image width: 5.08 mm; oblique diffused illumination 

research by gagan chodary gem testing laboratory jaipur gem-passion.com (igtlj.com plz like it )

Strongly Pleochroic 'Epidote (Piemontite)' Inclusions in Quartz

Strongly Pleochroic 'Epidote (Piemontite)' Inclusions in Quartz

These crystals of epidote (piemontite) in quartz exhibit 'orange-brown' and 'purple pink -red' as two major pleochroic colours; third one was pale brown. Note the colour shift of crystals on rotation of the polarizer - brown crystals turn purple pink- red and vice versa. This specimen of quartz was sold to the supplier as "Confetti Sunstone" from Tanzania. Stone Courtesy: Thierry Pradat  research by gagan chodary from gem testing laboratory jaipur

Strongly Pleochroic 'Epidote (Piemontite)' Inclusions in Quartz

emerald

emerald is a brittel stone