About Us

Store Hours & Contact Information:

Phone: 646-781-9377
Email: [email protected]
Address: 102 W 79th St New York, NY 10024
Store Hours: Sun – Sat, 10AM – 7PM

About Astro West:

Astro West is owned and run by Marc Tanjeloff, a third generation mineral dealer and collector. His grandfather Julio Tanjeloff turned Astro Minerals into a lavish 16,000 square foot gallery showcasing items from all over the world, from fine minerals to African art, and created the periodical Mineral Digest and was the first person to bring the mineral tanjeloffite, more commonly known as tanzanite, to the United States.

Marc’s new venture Astro West pays tribute to his grandfather and focuses more in-depth on mineral collecting. Marc was drawn further into the mineral game early on in his career through meeting and becoming involved with the extensive collection of mineral enthusiast Marc Weill. In addition, Marc Tanjeloff worked with the prominent collector Lida Hill to build her collection through the 2000s. In 2008, Tanjeloff helped Chris Burch start a collection of minerals and someone brought an incredible tantalite/sphene specimen to Marc’s attention. The very next day Astro Mining Incorporated came into existence and Marc was on a plane to Tanzania, where he bought land and built a company with Burch.

In 2015, a son on the way inspired him to expand the family business to a new location on the West side that brings his discerning eye and passion for fine minerals to every customer and every piece.