These have been stored for 25+ years. I believe this is MOLYBDENITE ON MATRIX, looks like TOURMALINE. Have not seen anything like this or this large. This item is in the category "Collectibles\Rocks, Fossils & Minerals\Crystals & Mineral Specimens\Crystals".
The seller is "debchampion2001" and is located in this country: US. This item can be shipped to United States, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech Republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, Sweden, Korea, South, Indonesia, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Mexico, New Zealand, Philippines, Singapore, Norway, Saudi Arabia, United Arab Emirates, Bahrain, Croatia, Republic of, Malaysia, Chile, Costa Rica, Dominican Republic, Panama, Trinidad and Tobago, Guatemala, El Salvador, Honduras, Jamaica, Belize, Dominica, Grenada, Brunei Darussalam, Bolivia, Ecuador, Gibraltar, Guadeloupe, Iceland, Jordan, Cambodia, Luxembourg, Martinique, Nicaragua, Peru, Pakistan, Paraguay, Vietnam, Uruguay, Aruba, Saint Kitts-Nevis, Turks and Caicos Islands, Bangladesh, Egypt, French Guiana, Guernsey, Jersey, Liechtenstein, Monaco, Macau, Canada, South Africa, Colombia, Antigua and Barbuda, Saint Lucia, Barbados, Bermuda, Cayman Islands, Maldives, Oman, Reunion, Sri Lanka, Montserrat.