More than three thousand different crystals of several varieties and sizes are on display.

Mr. Jules Roger Sauer's private collection of rough and cut gemstones was organized on a private museum in the famous Ipanema area, in Rio de Janeiro, and it is on display for the public viewing since 1989. The Museum is a "must" for visitors coming this city. A typical scenery reproducing the atmosphere of mining sites leads you to replicas of emerald, aquamarine and tourmaline mines, the most representative Brazilian colored stones.   From Monday to Friday, open from 9am to 7pm On Saturdays, open from 9am to 4pm Address: Rua Garcia D'Ávila, 105 Ipanema 22421-010 Rio de Janeiro RJ Brazil Phones: (55-21) 2512.1132 / 2239.8045 Free Admission

The Amsterdam Sauer Museum of Rare Minerals and Precious Stones, located in Rio de Janeiro, is the most complete private gemstone museum in South America. It is the only one to exhibit replicas of mines in their actual sizes and includes specimens featured in the Guiness Book of Records.