American Educational Products LLC has been supplying the highest quality classroom materials domestically and internationally for more than 70 years. With our creative in-house product development team we are able to introduce new products on a yearly basis. Our products have helped teachers bring the joy of discovery through hands-on and investigative learning styles to generations of students. We are sincerely proud of our legacy and we promise to strive to meet the needs of present and future students as they prepare to become knowledgeable and successful world citizens. Recognition of the kind and degree of luster of some minerals is an aid to identification. This collection provides examples of both metallic and non-metallic types of luster. 15 specimens approximately 1 1/2 x 1 1/2 number-coded. American Educational Products have a lead ship time of 21 days.- SKU: AMED3474