- Thumbnail, 2.8 x 1.9 x 1.8 cm
- Pune District (Poonah District), Maharashtra, India
Lustrous, sharp, pastel-green heulandite crystals form an aesthetic thumbnail specimen from Poona, India and the Carlton Davis Thumbnail Collection. Complete-all-around and nearly pristine. Green heulandite of this quality is very uncommon from the well-known quarries near Poona.