A lesser-known piece of #Canadiangeology.
#Ijolite is an uncommon igneous #rock composed mainly of #nepheline and #pyroxene, formed from silica-poor, alkaline magma. Paired with colour-changing #Hackmanite, this #Canadian specimen brings together two fascinating geological stories in one piece.
#Ijolite is an uncommon igneous #rock composed mainly of #nepheline and #pyroxene, formed from silica-poor, alkaline magma. Paired with colour-changing #Hackmanite, this #Canadian specimen brings together two fascinating geological stories in one piece.
September 16, 2026 at 3:42 PM
A lesser-known piece of #Canadiangeology.
#Ijolite is an uncommon igneous #rock composed mainly of #nepheline and #pyroxene, formed from silica-poor, alkaline magma. Paired with colour-changing #Hackmanite, this #Canadian specimen brings together two fascinating geological stories in one piece.
#Ijolite is an uncommon igneous #rock composed mainly of #nepheline and #pyroxene, formed from silica-poor, alkaline magma. Paired with colour-changing #Hackmanite, this #Canadian specimen brings together two fascinating geological stories in one piece.
#OTD (Jan 06) in the year 1928: death of Wilhelm Ramsay, Finnish geologist and professor (b. 1865) #OTDIH #history 🗃️
Wilhelm Ramsay
Wilhelm Ramsay was a Finnish geologist. He became a member of the Royal Swedish Academy of Sciences in 1914 and in 1915 was accepted into the Royal Physiographic Society in Lund. He coined the terms Fennoscandia (1900) and Postjotnian (1909). Ramsay also coined the term ijolite.
en.wikipedia.org
January 6, 2025 at 9:35 AM
#OTD (Jan 06) in the year 1928: death of Wilhelm Ramsay, Finnish geologist and professor (b. 1865) #OTDIH #history 🗃️