late 1960's  Stripping the main zone of the mine site to expose mineralization. Mine as it appeared in the late 1960's.

 Aug 80  Big amethyst crytals O5. August 1980

 1970's  A black and white photo of open pit mining at the Thunder Bay Amethyst Mine in the 1970's

 1960's  A late 1960's photo of the open pit mine at Thunder Bay Amethyst Mine.

 circa  A colour photo of the Thunder Bay Amethyst open pit mine (01)

   VARIETY INFORMATION:, Variety of: Quartz, SiO2 ., Uses: Gemstones and ornamental stones., Birthstone for: February, Color: various shades of purple., Index of refraction: 1.544-1.553, Birefringence: 0.009, Hardness: 7, Cleavage: none, Crystal system: trigonal, ...

   A vug showing large clay covered amethyst crystals., A vug is another name for geode - a nodular stone having a cavity lined with crystals.

 October 1991  Photo showing large X1's amethyst crystals.

 1972  Photo of blasting (O2) in 1972 at the Amethyst Mine Panorama.

 1992  A coloured 1992 photo of an open pit mine at Amethyst Mine Panorama

 1985  Photo of a sample of malachite. August 1985.

 1985  Large amethyst crystals, September 2,1985.

 1992  Large clay-covered amethyst crystals, August 3,1992.

 1970  Photo showing the site of the main office of the Thunder Bay Amethyst Mine, 1970.

 1977  Shown here is a coloured, 1977 photo of an open mining pit at the Thunder Bay Amethyst Mine. Thunder Bay, Ontario, amethyst

 1986  Shown here is rock being hosed down to clear off the overburden, in preparation for rock sampling.

 1976  Shown in this photo is open pit benching., Benching of a steep work face, consists of narrow horizontal steps across the slope. The rock is exposed and then inspected. Open pit benching is used where slopes are sufficiently steep, water supply is available, and there is room for the dump waste to...

 1968  Shown here is one of the open pits of the Thunder Bay Amethyst Mine. Thunder Bay, mining, mines, open pit mining

 1985  An aerial view of Thunder Bay Amethyst Mine looking west.

 1985  An aerial view of the Thunder Bay Amethyst Mine looking south, 1985.

 1970's  A photo showing the use of high pressure washing to expose can cut through overburden and clean bedrock.

 1960's  Early days of Amethyst Mine Panorama - 1960's

 1970's  Photo showing a front-end loader in a pit at the Thunder Bay Amethyst Mine, in the 1970's.

 1960's  Clearing the land for the future site of the Thunder Bay Amethyst Mine in the late 1960's.

 1970's  A photo of a fork lift with a pallet of sorted amethyst.

 1970's  Photo of an unidentified man preparing to blast rock at the Thunder Bay Amethyst Mine in the 1970's.

 1970's  Mucking in the open pit, 1970's., 'Muck is the name popularly applied to rock or ore broken from a pit, trench, or underground working. While it is being shoveled out, a portion may be set aside for sampling. Fractions commonly used are one shovelful in every five, ten, or twenty.

 1970's  A 1970's photo of open pit (07) at Thunder Bay Amethyst Mine.

 1970's  A 1970's photo showing the sorting tables for the rock samples at the mining site.

 1970's  Photo showing the washing and sorting area for rock samples at the Thunder Bay Amethyst Mine in the 1970's.

 1970's  An open pit mine at Thunder Bay Amethyst Mine in the 1970's.

   A coloured photo showing Open Pit (02) of the Thunder Bay Amethyst Mine.

   Open Pit (04) at Amethyst Mine Panorama Thunder Bay, mines, Mining, Open Pit Mines

   A coloured photo of an amethyst sample Thunder Bay, mines, Mining, Amethyst

   A photo of the sorting area at Amethyst Mine Panorama Thunder Bay, mines, mining, Amethyst Mine Panorama

   A coloured, aerial view of the Thunder Bay Amethyst Mine site.

   Coloured photo of Open Pit (03) at Amethyst Mine Panorama.

   Fragmented amethyst cemented by mudstone.

   Late 1960's - opening the main zone of the Thunder Bay Amethyst Mine.

   Photo showing the vuggy veins on the face of the open pit at Thunder Bay Amethyst Mine., A vug is another name for a geode - a nodular stone having a cavity lined with crystals.