Part 1 shows the field spalling of a large 300# dacite boulder. Large spalls are removed with the intent to save the core to make a large blade from. This series contains 7 parts.

Continuation of field spalling 300# dacite boulder....

Continuation of bifacing a 24" dacite dance blade

A trip to Mahana bay, the green sand beach. At the southern most tip of the United States. One of the most awe inspiring places on Earth. Truly God's country. Music: Wanting Memories by Keali'i Reichel I hope the sand shows it's olive green color. If not, please research it on the net. It's really well worth the effort. Description follows... "The beach formed by the erosion and concentration of olivine crystals derived from the surrounding cone. The volcanic cone is Puu Mahana and it is a tuff ring (a type of volcano formed by the interaction of magma and shallow groundwater). The cone is associated with the Southwest Rift Zone of Mauna Loa (although the cone is not right on the rift). Mauna Loa flow can contain abundant olivine crystals. As ocean waves crashed against the coast they wore away at the cone and made a small bay along the coast. The waves also removed the lighter grains of sand (made of volcanic ash) leaving the denser olivine crystals behind to form the beach. I do not know of another green sand beach. Olivine is common in basalt lava. A few crystals might be found in some andesite lava. It is never found in dacite and rhyolite lava."

Mai multe la http://www.sfetcu.com Cuarţul după feldspat este mineralul cel mai răspândit în scoarţa terestră. Cristalele se formează după răcirea soluţiilor bogate în SiO2 şi frecvent întâlnit în roci ca: Plutonit, Granite, Granitoide, Granodiorite, Tonalite, Quarz-Syenite, Quarz-Monzonite, Quarz-Diorite, minerale de gangă (steril) ca: Aplite ca şi din grupa vulcanitelor Rhyolithe, Dacite, Andesite, Quarz-Trachyte, Quarz-Latite. Un criteriu folosit în clasificarea rocilor este conţinutul în cuarţ. Cuarţul este frecvent mineral de gangă în filoanele de aur. La fel acest mineral este întâlnit în roci metamorfice ca Şisturi, Gneise. Datorită durităţii sale este răspândit şi în rocile sedimentare. După ce este purificat, cuarţul poate fi folosit în terapii pentru vindecarea unor boli doar după o perioadă de "armonizare a fiinţei noastre cu cristalul respectiv", timp de 33 de zile în care îl vom purta cu noi oriunde mergem. Cu cît vibraţiile noastre vor fi mai apropiate de vibraţiile cristalului, cu atît mai eficient va funcţiona cristalul ca dispozitiv de dirijare a energiei. Film realizat de Dan Alexoae

Shows 2 Ivory Billets being used to Percussion a fairly large biface from Dacite.

Shows how to percussion a raw piece of Oregon Dacite into a blade core...

You might need the words first!!! Im afraid of conglomerate especially when im in a quarry, and theres no-one else around oooo i get the shivers i dont wanna be some dacite its a sight that i fear most id rather have a piece of sandstone watch the discovery channel (chorus): rock...oh rock oooohhhh roooccckkkkk oh rock ge-olo-gy rock...ohh rock ooohhh rrroooccckkkkk oh ge-olo-gy im a really lazy girl im the worst in the class never walk under cliffs i keep a brachiopod ill take you up on a dare anytime anywhere name the place ill be there mapping in Spain (Jumbi-bumping!!!) i dont care! (chorus) and then at the end: rock...geolo-geolo-geologgggggyyyyyyyyyyyy (laugh laugh laugh) (funky instrumental bit) So after im completely knackered i know im not the only one geology can indeed be fun if you can be arsed sometimes living out your dreams aint as easy as it seems you wanna walk around the world to a beautiful locality! (chorus to fade!)

Continuation of bifacing a 24" dacite dance blade

Continuation of bifacing 24" dacite dance blade