MINERAL SPECIMEN OF ANORTHITE FROM ALBANY CO., WYOMING

Description

THIS IS A SPECIMEN OF
ANORTHITE FROM THE LARAMIE ANORTHITE-NORITE COMPLEX.
IT IS FROM THE
LARAMIE ANORTHITE-NORITE COMPLEX, LARAMIE RANGE, ALBANY CO., WYOMING.
THE SPECIMEN IS
APPROXIMATELY 9 X 8 X 7 cm
.  AND IT
WEIGHS 437.6 gm.
ANORTHITE IS THE CALCIUM END MEMBER OF THE PLAGIOCLASE FELDSPARS.  IT IS RICH IN ALUMINUM AND IS CONSIDERED A SOMEWHAT VIABLE SOURCE OF ALUMINUM METAL. THE ANORTHITE IS PRECAMBRIAN IN AGE.  IT IS AN EXCELLENT CLASSROOM EXAMPLE.  SEE PICTURES.  I WILL COMBINE SHIPPING WHEN POSSIBLE.  THANKS FOR LOOKING.