With the development of Lapis rosin I started to test the gems as additions to the rosin. In this way, more experiments with additions of rock crystal, aquamarine and tourmaline have arisen.
These rosins have a very fine quality, the usher, the sound experience in the area of the vocal a little more. I now offer this test pieces for testing in as part of the test kits, such as those offered in the shop:
For Violin and Viola: rock crystal and tourmaline.
For Cello: aquamarine and tourmaline.
For Double bass: Lapis V and Lapis VI
Krumlinden 43, MUENSTERTAL, 79244, Germany
Contact Hansgiinter Kraushaar
Tel +49176 56283001