Topaz, Thomas Range, Juab Co., Utah, USA, 2.9 x 2.6 x 1.6 cm. Photo Copyright © Rob Lavinsky & irocks.com

Topaz, Sar-e Sang, Koksha Valley, Khash & Kuran Wa Munjan Districts, Badakhshan Province, Afghanistan. Photo Copyright © Photo & Collection of Martins da Pedra

Hialine crystal with 3x1,5x1,5cm

Topaz, Catamarca, Argentina. 3.4 x 2.7 x 2.5 cm. Photo Copyright © Rob Lavinsky & irocks.com

A rather rare ARGENTINE topaz crystal, attractively accented with smoky quartz. The crystal is complete all around, with a good termination and striated side faces. The interior is quite gemmy.

Topaz, Quartz. From El Chaltén, Lago Argentino Department, Santa Cruz, Argentina. Photo Copyright © Photo by Kevin Ward & exceptionalminerals.com

Measures 8 cm by 7.8 cm by 7.7 cm in size. The Topaz measures 3 cm by 3.4 cm.
Currently in the Kevin Ward Personal Collection

Topaz, Catamarca, Argentina, 3.3 x 2.6 x 2.0 cm. Photo Copyright © Rob Lavinsky & irocks.com

A rather rare ARGENTINE topaz crystal! The crystal is largely complete, with contacts on two sides. The faces on the display side are glassy and sharp.

(source http://www.mindat.org)