Calgary Rock and Lapidary Club
Pebble Pups

Pebble Pups include more than a dozen members age 5 to 15 who meet in a classroom setting for "hands-on" learning about Lapidary and the Earth Sciences. Some of their projects include Soapstone Carving, Mineral Identification, and Scrimshaw.

Here is some information and activities for Pebble Pups and those who work with Pebble Pups. We will be adding more on Mineral Properties, Sand Art, Making Fossils, Rock Folklore and Collecting Tips!

Contact Pebble Pup Chairperson,

Lorraine Edwards, 403-981-6432
lorraineiedwards@hotmail.com

and add your suggestions.


Birthstones
Month Official Birthstone Alternates
JanuaryGarnetChalcedony
FebruaryAmethystHyacinth, Zircon
MarchAquamarine, BloodstoneJasper, Ruby
AprilDiamondSapphire, Crystal
MayEmeraldAgate, Chrysoprase
JunePearl, Moonstone, AlexandriteEmerald
JulyRubyPearl, Turquoise
AugustPeridot, SardonyxCarnelian, Alexandrite
SeptemberSapphireBeryl, Lapis Lazuli
OctoberOpalTourmaline
NovemberTopaz, CitrinePearl, Garnet, Cat's-Eye
DecemberTurquoise, ZirconBlue Zircon, Ruby


Moh's Hardness Scale
Mineral Hardness
Talc1
Gypsum2
Calcite3
Fluorite4
Apatite5
Feldspar6
Quartz7
Topaz8
Corundum9
Diamond10


Field Hardness Scale
Hardness Common Tests
1Easily scratched with finger nail
2Scratched by fingernail (2.5)
3Scratched by a penny (3.0)
4Scratched easily by a knife, but will not scratch glass
5Difficult to scratch with a knife; barely scratches glass (5.5)
6Scratched by a steel file (6.5); easily scratches glass
7Scratches a steel file and glass


Grow a Crystal Garden !

BE SURE YOU HAVE AN ADULT SUPERVISING YOU!

First you will need to gather the following articles:

  1. a shallow glass bowl
  2. broken pieces of porous brick or pumice
  3. household ammonia
  4. liquid laundry blueing
  5. food coloring
  6. salt
Wash the pieces of rock and arrange them in the glass bowl while still wet. In a separate glass container mix 4 tablespoons of water with 4 tablespoons of ammonia. Pour the mixture over the wet rocks making sure to dampen them all. Cover one rock with undiluted blueing and sprinkle the others with food coloring - red, yellow and green, with a drop of blueing added here and there. Now sprinkle 4 tablespoons of salt over all the rocks.

Within a few hours crystals will begin to form. If you watch closely, you can actually see them grow. After two days, add more water and ammonia mixture and this will start your crystals growing again. The crystals are very fragile and will break if you bump the bowl. With all the colors you have added, you will have a beautiful bowl of crystals.

Don't Miss Our Links for Pebble Pups


Drop us a line for more information about upcoming activities!
Check back here for new additions to this page!


http://www.crlc.ca/crlckids.htm
Updated June 19, 2010
This site is maintained by Murray Nicholson