Description: In a darkroom, expose them to an Ultraviolet light (long wave fluorescent light - the type used in school science labs or theatrical productions). It will enable you to identify them by colour. Some of these specimens will also react to shortwave fluorescent light sources. Be careful...if you use a shortwave lamp, do not look into the light without protective eye cover - it could cause severe eye damage.
Fluorescent colour - Mineral - Location
Creamy yellow - Fluorite - Ohio
Purple - Fluorite - England
Orange - Tremolite - Fowler, NY
Red - Tirodite - Taleville, NY
Yellow - Wernerite - Otter Lake, Que, Canada
White - Selenite - Canada
Orange - Sodalite - Mt. St. Hilaire Que, Canada
Yellow-White - Calcite - Mexico
Approximate Size of pieces: 2cm x 1.5cm x 0.5cm
Approximate Weight of Bag: 35g
Quantity: 1 Bag
We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.