|
USA | |
| [var. Rock Crystal] Smith, Arthur E. Jr. (1997) Collecting Arkansas Minerals. L. R. Ream Publishing, Coeur d'Alene, ID. |
| Darcy & Mike Howard (2000) Collecting Crystals, The Guide to Quartz in Arkansas |
| [var. Rock Crystal] Rob Lavinsky |
| Engel(1952). Rocks & Min.:63:112 |
| Rocks & Min.:63:112. |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| [var. Rock Crystal] Engel(1952). Rocks & Min.:63:113 |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
| [var. Rock Crystal] Engel (1952) Quartz Crystal Deposits of Western Arkansas USGS Bulletin 973E |
| avantfishermtn.com (n.d.) https://avantfishermtn.com/pages/mine-your-own-crystals |
| [var. Rock Crystal] Rocks & Min.: 63:113. |
| [var. Rock Crystal] Engel(1952). Rocks & Min.:63:113 |
| Engel(1952). Rocks & Min.:63:113 |
| [var. Rock Crystal] Rocks & Min.: 63:113. |
| [var. Rock Crystal] Rocks & Min.:63:113. |
| [var. Rock Crystal] Rocks & Min.: 63:113. |
| [var. Rock Crystal] Rocks & Min.: 63:113 64:310. |
| [var. Rock Crystal] Rocks & Min.: 63:113. |
| Smith, Arthur E. Jr. (1988) Arkansas Mineral Locality Index. Rocks & Minerals, 63 (2) 104-125 doi:10.1080/00357529.1988.11761826 |
Mt Ida, Montgomery County, Arkansas, USA