Ontario introduced time-of-use (TOU) pricing to reflect the costs of producing electricity at different times of the day. There are three TOU periods: 1  Off-peak, when energy demand is low and less expensive sources of electricity is used. 2  Mid-peak, when the cost of energy and demand are moderate. 3  On-peak, when demand is highest and more expensive forms of electricity production are used.
Flower Obsidian-a variety of Snowflake Obsidian in which the crystals have coloring (due to mineral staining or minerals present in the obsidian itself). See the Snowflake Obsidian topic below. Leopard Skin and Lizzard Skin-multi-colored, mottled types, usually reddish-brown, brown and black.heen Obsidian-this is a family of valued types which consists of sub-types categorized according to the effect or color displayed. Microscopic bubbles and/or crystals of Feldspar or Mica trapped in the Obsidian result in a chatoyant (irridescent) sheen when the stone is viewed from certain angles.
About the Stone. Obsidian is a volcanic glass created when lava erupts from a volcano, but only when certain conditions are met: 1  There needs to be a large amount of silica in the environment (this accounts for 70% of obsidianâs composition).2  The lava must cool rapidly, before in it has time for crystal growth.bout the Stone. Obsidian is a volcanic glass created when lava erupts from a volcano, but only when certain conditions are met: 1  There needs to be a large amount of silica in the environment (this accounts for 70% of obsidianâs composition).