Al2SiO4(F,OH)2

Last year I had another post about this car. This was a special edition Hutner done only in this Topaz color. Photo by: pyntofmyld 

Pure Topaz

A 1976 Hillman Hunter Topaz. Topaz was a special edition done in this color only, not many left and this being a fine example. Top photos from  Trigger's Retro Road Tests! bottom photo by Bob Lovelock. 

B&W Topaz

The Hunter Topaz was a Limited Edition of 1500 sold in the late 1975/1976. All had: Copperbeech metallic, Vinyl roof, Rostyle wheels, Push-button radio, Fawn brushed nylon seats, Servo-assisted brakes, Side repeater flashes, Overdrive, Inertia reel seatbelts. Photographed next to an Imp Caledonain, at the Rootes design studio courtyard in Coventry.

Hunted!

This Hunter Topaz was Hunted and sent to the scrapyard under UK's Vehicle Scrappage Scheme! What a shame really!!!

The Topaz was a Limited Edition of 1500 sold in the late 1975/1976. All had: Copperbeech metallic, Vinyl roof, Rostyle wheels, Push-button radio, Fawn brushed nylon seats, Servo-assisted brakes, Side repeater flashes, Overdrive, Inertia reel seatbelts.

Pictures from: www.AutoShite.com

Hunter Topaz

I believe Hunter Topaz trim level was introduced in 1975 in very limited numbers. I'm not sure how many of them are still around.
Why you should have bought a Topaz? I mean how could you have turned down Fawn Brushed Vinyl Seats?... ;)