The mod crashed when I placed down a creative crystal and the log says:
java.lang.NoClassDefFoundError: com/sun/javafx/geom/Vec3f at mod.crystals.client.particle.ParticleType.posVelocityColor(ParticleType.java:61) ~[ParticleType.class:?] at mod.crystals.network.PacketSealFX$Handler.onMessage(PacketSealFX.java:61) ~[PacketSealFX$Handler.class:?]Do I have an insufficient version of Java or what is the problem?
latest.log

This should be fixed on the builds from Curse, or you can fix it by putting this https://farfetchd.duckdns.org/stuff/vec3f.jar in your mods folder.