Aprox 7cmx 4cm
About Celestite from My Crystalpedia.org:
“The Serenity Stone”
CELESTITE comes from the Latin word “Heaven”. The energy of this stone vibrates at such a high level. It has become the New-Age teacher stone, as it provides one with hope and faith, while connecting one to the wisdom of the divine realms. Aids one in developing a sense of knowing who they are, physically and spiritually.